This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:25:08,918 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:25:08,974 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:25:08,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:25:08,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:25:09,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:25:09,018 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:25:09,018 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:25:09,019 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:25:09,019 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:25:09,019 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:25:09,020 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:25:09,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:25:09,021 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:25:09,022 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:25:09,022 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:25:09,022 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:25:09,023 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:25:09,023 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:25:09,023 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:25:09,023 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:25:09,024 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:25:09,024 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:25:09,024 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:25:09,025 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:25:09,025 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:25:09,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:25:09,025 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:25:09,026 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:25:09,026 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:25:09,026 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:25:09,026 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:25:09,027 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:25:09,027 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:09,027 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:25:09,027 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:25:09,027 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:25:09,028 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:25:09,028 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:25:09,028 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:25:09,028 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:25:09,028 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:25:09,029 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:25:09,029 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:25:09,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:25:09,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:25:09,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:25:09,327 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:25:09,328 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:25:09,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/trex02-1.yml/witness-2.1.yml [2024-09-20 13:25:09,378 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:25:09,379 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:25:09,381 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loops/trex02-1.c [2024-09-20 13:25:10,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:25:10,793 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:25:10,794 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/trex02-1.c [2024-09-20 13:25:10,800 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/f06fd27b3/5d743dde4bef4640b9fa0c7fd8439032/FLAG1741e822a [2024-09-20 13:25:11,203 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/f06fd27b3/5d743dde4bef4640b9fa0c7fd8439032 [2024-09-20 13:25:11,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:25:11,207 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:25:11,208 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:11,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:25:11,213 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:25:11,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:09" (1/2) ... [2024-09-20 13:25:11,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97908b5 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:11, skipping insertion in model container [2024-09-20 13:25:11,216 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:09" (1/2) ... [2024-09-20 13:25:11,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2c2645f8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:25:11, skipping insertion in model container [2024-09-20 13:25:11,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:11" (2/2) ... [2024-09-20 13:25:11,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97908b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11, skipping insertion in model container [2024-09-20 13:25:11,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:11" (2/2) ... [2024-09-20 13:25:11,223 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:25:11,224 INFO L1541 ArrayList]: Loop invariant at [L23-L27] (\old(x) <= 0) [2024-09-20 13:25:11,224 INFO L1541 ArrayList]: Function contract at [L5]: requires ((\old(cond) != 0) && (x <= 0)), ensures ((\old(cond) != 0) && (x <= 0)) [2024-09-20 13:25:11,225 INFO L1541 ArrayList]: Function contract at [L21]: requires (x <= 0), ensures (\old(x) <= 0) [2024-09-20 13:25:11,236 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:25:11,341 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/loops/trex02-1.c[320,333] [2024-09-20 13:25:11,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:11,358 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:25:11,386 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/loops/trex02-1.c[320,333] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-20 13:25:11,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:25:11,404 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:25:11,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11 WrapperNode [2024-09-20 13:25:11,405 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:25:11,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:25:11,406 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:25:11,406 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:25:11,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11" (1/1) ... [2024-09-20 13:25:11,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11" (1/1) ... [2024-09-20 13:25:11,419 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11" (1/1) ... [2024-09-20 13:25:11,426 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 [2024-09-20 13:25:11,426 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11" (1/1) ... [2024-09-20 13:25:11,426 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11" (1/1) ... [2024-09-20 13:25:11,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11" (1/1) ... [2024-09-20 13:25:11,433 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11" (1/1) ... [2024-09-20 13:25:11,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11" (1/1) ... [2024-09-20 13:25:11,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11" (1/1) ... [2024-09-20 13:25:11,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:25:11,438 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:25:11,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:25:11,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:25:11,439 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11" (1/1) ... [2024-09-20 13:25:11,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:25:11,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:25:11,474 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) [2024-09-20 13:25:11,476 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 [2024-09-20 13:25:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:25:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:25:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:25:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:25:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2024-09-20 13:25:11,507 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:25:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:25:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:25:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:25:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:25:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:25:11,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2024-09-20 13:25:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:25:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2024-09-20 13:25:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:25:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:25:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:25:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:25:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:25:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:25:11,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:25:11,566 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:25:11,567 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:25:11,608 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:25:11,650 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:25:11,668 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:25:11,690 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:25:11,690 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:25:11,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:11 BoogieIcfgContainer [2024-09-20 13:25:11,691 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:25:11,691 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:25:11,691 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:25:11,692 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:25:11,692 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:25:09" (1/4) ... [2024-09-20 13:25:11,692 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4c66aa44 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:25:11, skipping insertion in model container [2024-09-20 13:25:11,692 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:25:11" (2/4) ... [2024-09-20 13:25:11,693 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4c66aa44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:11, skipping insertion in model container [2024-09-20 13:25:11,693 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:11" (3/4) ... [2024-09-20 13:25:11,693 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4c66aa44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:25:11, skipping insertion in model container [2024-09-20 13:25:11,693 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:11" (4/4) ... [2024-09-20 13:25:11,694 INFO L79 RefereeObserver]: Analyzing ICFG trex02-1.c [2024-09-20 13:25:11,697 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:25:11,697 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:25:11,698 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-3 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:25:11,698 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 13:25:11,698 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-20 13:25:11,698 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L23-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-20 13:25:11,698 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:25:11,698 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 13:25:11,698 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 2 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head, 3 loop-free subgraphs from procedure entry to error location [2024-09-20 13:25:11,726 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:25:11,727 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:11,727 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:11,728 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:11,729 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:11,730 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,737 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:25:11,738 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,738 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:11,738 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:11,739 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:11,742 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:11,761 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:25:11,774 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:25:11,775 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:11,775 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:11,775 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:11,775 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:11,775 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,782 INFO L101 BaseMinimizeStates]: Removed 9 edges and 3 locations by large block encoding [2024-09-20 13:25:11,783 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,783 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:11,783 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:11,783 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:11,787 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:11,789 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-3 to error location mainErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:25:11,798 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:25:11,798 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:11,798 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:11,798 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:11,798 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:11,798 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,799 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:25:11,799 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,799 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:11,800 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:11,800 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:11,800 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:11,804 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:25:11,809 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:25:11,810 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:11,810 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:11,810 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:11,810 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:11,810 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,811 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:25:11,811 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,811 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:11,811 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:11,812 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:11,812 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:11,813 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:25:11,827 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 13:25:11,827 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:11,827 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:11,827 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:11,827 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:11,827 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,849 INFO L101 BaseMinimizeStates]: Removed 15 edges and 6 locations by large block encoding [2024-09-20 13:25:11,850 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,850 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:11,850 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:11,850 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:11,852 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:11,854 INFO L520 InvariantChecker]: The annotation(s) from loop head L23-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:25:11,864 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:25:11,864 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:11,865 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:11,865 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:11,865 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:11,865 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,867 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:25:11,867 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,867 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:11,869 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:11,869 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:11,870 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:11,872 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:25:11,879 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:25:11,879 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:25:11,879 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:25:11,880 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:25:11,880 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:25:11,880 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,881 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:25:11,881 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:25:11,881 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:25:11,881 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:25:11,881 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:25:11,881 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:25:11,883 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:25:11,886 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-09-20 13:25:11,886 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4c66aa44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:25:11, skipping insertion in model container [2024-09-20 13:25:11,886 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:25:11,887 INFO L158 Benchmark]: Toolchain (without parser) took 680.12ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 110.6MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-20 13:25:11,888 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 163.6MB. Free memory was 126.4MB in the beginning and 126.2MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:11,889 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 163.6MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:25:11,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.50ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 117.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:25:11,890 INFO L158 Benchmark]: Boogie Preprocessor took 30.12ms. Allocated memory is still 163.6MB. Free memory was 117.5MB in the beginning and 115.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:25:11,890 INFO L158 Benchmark]: RCFGBuilder took 253.12ms. Allocated memory is still 163.6MB. Free memory was 115.3MB in the beginning and 128.6MB in the end (delta: -13.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 13:25:11,891 INFO L158 Benchmark]: Referee took 195.16ms. Allocated memory is still 163.6MB. Free memory was 128.6MB in the beginning and 110.6MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-20 13:25:11,893 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is a valid proof of correctness. Annotation is a valid proof of correctness. Annotation is valid for all loop-free paths from loop head at line 23 to exit of procedure main. 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 entry of procedure main 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 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 check that a call to reach_error is unreachable at line 7. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.13ms. Allocated memory is still 163.6MB. Free memory was 126.4MB in the beginning and 126.2MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.22ms. Allocated memory is still 163.6MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.50ms. Allocated memory is still 163.6MB. Free memory was 130.7MB in the beginning and 117.5MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.12ms. Allocated memory is still 163.6MB. Free memory was 117.5MB in the beginning and 115.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 253.12ms. Allocated memory is still 163.6MB. Free memory was 115.3MB in the beginning and 128.6MB in the end (delta: -13.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 195.16ms. Allocated memory is still 163.6MB. Free memory was 128.6MB in the beginning and 110.6MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-09-20 13:25:11,912 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...