This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:28:07,689 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:28:07,771 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:28:07,774 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:28:07,775 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:28:07,801 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:28:07,802 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:28:07,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:28:07,803 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:28:07,803 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:28:07,803 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:28:07,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:28:07,804 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:28:07,804 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:28:07,805 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:28:07,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:28:07,806 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:28:07,806 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:28:07,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:28:07,807 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:28:07,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:28:07,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:28:07,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:28:07,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:28:07,808 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:28:07,809 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:28:07,809 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:28:07,809 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:28:07,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:28:07,810 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:28:07,810 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:28:07,811 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:28:07,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:28:07,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:28:07,812 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:28:07,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:28:07,812 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:28:07,812 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:28:07,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:28:07,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:28:07,813 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:28:07,814 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:28:07,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:28:07,814 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:28:08,061 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:28:08,084 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:28:08,087 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:28:08,089 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:28:08,089 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:28:08,090 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2024-09-20 13:28:09,508 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:28:09,706 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:28:09,708 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2024-09-20 13:28:09,718 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/556c3c17a/d725d4a72b6e403aa99a5067348e3393/FLAG4abf71fcc [2024-09-20 13:28:10,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/556c3c17a/d725d4a72b6e403aa99a5067348e3393 [2024-09-20 13:28:10,078 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:28:10,078 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:28:10,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound20.yml/witness-2.1.yml [2024-09-20 13:28:10,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:28:10,128 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:28:10,129 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:28:10,129 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:28:10,133 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:28:10,134 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:10" (1/2) ... [2024-09-20 13:28:10,135 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54da50e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:10, skipping insertion in model container [2024-09-20 13:28:10,135 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:10" (1/2) ... [2024-09-20 13:28:10,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@72ea88e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:10, skipping insertion in model container [2024-09-20 13:28:10,136 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 01:28:10" (2/2) ... [2024-09-20 13:28:10,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54da50e8 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:28:10, skipping insertion in model container [2024-09-20 13:28:10,137 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 01:28:10" (2/2) ... [2024-09-20 13:28:10,146 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:28:10,147 INFO L1541 ArrayList]: Loop invariant at [L36-L49] ((((((unsigned long long) b * a) % 2147483648) * 2) == (((__int128) ((unsigned long long) y * v) + ((unsigned long long) x * u)) % 4294967296)) && (\old(counter) == 0)) [2024-09-20 13:28:10,147 INFO L1541 ArrayList]: Function contract at [L20]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-20 13:28:10,147 INFO L1541 ArrayList]: Function contract at [L8]: requires (counter == 0), ensures (counter == 0) [2024-09-20 13:28:10,147 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 13:28:10,167 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:28:10,335 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/lcm2_unwindbound20.c[537,550] [2024-09-20 13:28:10,360 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:28:10,370 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-20 13:28:10,400 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/lcm2_unwindbound20.c[537,550] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-20 13:28:10,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:28:10,424 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:28:10,424 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:28:10 WrapperNode [2024-09-20 13:28:10,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:28:10,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:28:10,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:28:10,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:28:10,439 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 20.09 01:28:10" (1/1) ... [2024-09-20 13:28:10,439 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 20.09 01:28:10" (1/1) ... [2024-09-20 13:28:10,447 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 20.09 01:28:10" (1/1) ... [2024-09-20 13:28:10,461 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure assume_abort_if_not is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 13:28:10,461 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 20.09 01:28:10" (1/1) ... [2024-09-20 13:28:10,461 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 20.09 01:28:10" (1/1) ... [2024-09-20 13:28:10,467 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 20.09 01:28:10" (1/1) ... [2024-09-20 13:28:10,471 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 20.09 01:28:10" (1/1) ... [2024-09-20 13:28:10,472 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 20.09 01:28:10" (1/1) ... [2024-09-20 13:28:10,473 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 20.09 01:28:10" (1/1) ... [2024-09-20 13:28:10,475 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:28:10,475 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:28:10,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:28:10,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:28:10,476 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 20.09 01:28:10" (1/1) ... [2024-09-20 13:28:10,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:28:10,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:28:10,508 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 13:28:10,511 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 13:28:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:28:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:28:10,555 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:28:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:28:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:28:10,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:28:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:28:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:28:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:28:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:28:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:28:10,558 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:28:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:28:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:28:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:28:10,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:28:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:28:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:28:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:28:10,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:28:10,631 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:28:10,633 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:28:10,658 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:28:10,688 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:28:10,929 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:28:10,949 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:28:10,978 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:28:10,978 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:28:10,979 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:10 BoogieIcfgContainer [2024-09-20 13:28:10,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:28:10,979 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:28:10,979 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:28:10,980 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:28:10,980 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:28:10" (1/4) ... [2024-09-20 13:28:10,981 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@19886b66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:28:10, skipping insertion in model container [2024-09-20 13:28:10,981 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 01:28:10" (2/4) ... [2024-09-20 13:28:10,981 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@19886b66 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:28:10, skipping insertion in model container [2024-09-20 13:28:10,981 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 20.09 01:28:10" (3/4) ... [2024-09-20 13:28:10,981 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@19886b66 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:28:10, skipping insertion in model container [2024-09-20 13:28:10,982 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:10" (4/4) ... [2024-09-20 13:28:10,982 INFO L79 RefereeObserver]: Analyzing ICFG lcm2_unwindbound20.c [2024-09-20 13:28:10,986 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:28:10,986 INFO L373 InvariantChecker]: Will check inductivity from ENTRY assume_abort_if_notENTRY to ERROR_LOC assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:28:10,987 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:28:10,987 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:28:10,987 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-20 13:28:10,987 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 13:28:10,987 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr7ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-20 13:28:10,987 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr6REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-20 13:28:10,987 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 13:28:10,988 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 13:28:10,988 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 13:28:10,988 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:28:10,988 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 13:28:10,988 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-20 13:28:10,988 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 8 loop-free subgraphs from procedure entry to error location, 3 loop-free subgraphs from loop head to error location [2024-09-20 13:28:11,041 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:28:11,041 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:11,042 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:11,042 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:11,043 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:11,045 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:11,054 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:28:11,055 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:11,055 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:11,055 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:11,055 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:11,057 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:11,072 INFO L520 InvariantChecker]: The annotation(s) from entry assume_abort_if_notENTRY to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:28:11,097 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:28:11,097 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:11,098 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:11,098 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:11,098 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:11,098 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:11,101 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:28:11,102 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:11,102 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:11,102 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:11,103 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:11,103 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:11,107 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:11,124 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:28:11,125 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:11,125 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:11,125 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:11,125 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:11,125 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:11,140 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:28:11,140 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:11,140 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:11,140 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:11,140 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:11,141 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:15,143 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:28:15,169 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:28:15,169 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:15,169 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:15,169 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:15,169 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:15,170 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:15,170 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:28:15,170 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:15,171 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:15,171 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:15,171 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:15,171 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:15,176 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:15,197 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:28:15,197 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:15,197 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:15,197 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:15,197 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:15,198 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:15,199 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:28:15,199 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:15,200 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:15,200 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:15,200 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:15,200 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:15,203 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:15,221 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 13:28:15,222 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:15,222 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:15,222 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:15,222 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:15,222 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:15,260 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-20 13:28:15,262 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:15,262 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:15,263 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:15,263 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:15,264 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:15,266 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr7ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:28:15,279 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 13:28:15,279 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:15,280 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:15,280 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:15,280 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:15,280 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:15,301 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-20 13:28:15,301 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:15,301 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:15,301 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:15,302 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:15,308 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:19,311 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:28:19,326 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:28:19,326 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:19,326 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:19,327 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:19,327 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:19,327 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:19,328 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:28:19,328 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:19,328 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:19,328 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:19,329 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:19,329 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:19,333 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:19,344 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:28:19,344 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:19,344 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:19,345 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:19,345 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:19,345 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:19,347 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:28:19,347 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:19,347 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:19,347 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:19,347 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:19,348 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:19,350 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:28:19,372 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:28:19,372 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:19,372 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:19,372 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:19,373 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:19,373 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:19,374 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:28:19,374 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:19,374 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:19,374 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:19,375 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:19,375 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:19,376 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:28:19,386 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 13:28:19,386 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:19,387 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:19,387 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:19,387 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:19,387 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:19,389 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 13:28:19,389 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:19,389 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:19,390 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:19,390 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:19,390 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:19,391 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:19,400 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-20 13:28:19,400 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:19,400 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:19,400 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:19,400 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:19,400 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:19,405 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-20 13:28:19,405 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:19,405 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:19,405 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:19,405 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:19,405 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:19,407 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:28:19,416 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 13:28:19,416 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:19,417 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:19,417 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:19,417 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:19,417 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:19,445 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-20 13:28:19,445 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:19,446 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:19,446 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:19,446 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:19,453 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:23,461 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:28:23,466 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 13:28:23,467 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@19886b66 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:28:23, skipping insertion in model container [2024-09-20 13:28:23,467 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:28:23,469 INFO L158 Benchmark]: Toolchain (without parser) took 13340.04ms. Allocated memory is still 165.7MB. Free memory was 130.3MB in the beginning and 113.7MB in the end (delta: 16.6MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. [2024-09-20 13:28:23,469 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory was 87.8MB in the beginning and 87.7MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:28:23,470 INFO L158 Benchmark]: Witness Parser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 133.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:28:23,470 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.26ms. Allocated memory is still 165.7MB. Free memory was 130.3MB in the beginning and 116.6MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-20 13:28:23,470 INFO L158 Benchmark]: Boogie Preprocessor took 49.68ms. Allocated memory is still 165.7MB. Free memory was 116.6MB in the beginning and 114.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:28:23,471 INFO L158 Benchmark]: RCFGBuilder took 503.51ms. Allocated memory is still 165.7MB. Free memory was 114.6MB in the beginning and 96.8MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-09-20 13:28:23,472 INFO L158 Benchmark]: Referee took 12488.13ms. Allocated memory is still 165.7MB. Free memory was 96.8MB in the beginning and 113.7MB in the end (delta: -16.9MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2024-09-20 13:28:23,474 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to loop head at line 36. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to check that procedure precondition always holds at line 37. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to check that procedure precondition always holds at line 36. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 25. Annotation is valid for all loop-free paths from entry of procedure assume_abort_if_not to exit of procedure assume_abort_if_not. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 26. Annotation is valid for all loop-free paths from loop head at line 36 to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 36. 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 entry of procedure main to check that procedure precondition always holds at line 28. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 25. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 13. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory was 87.8MB in the beginning and 87.7MB in the end (delta: 119.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.12ms. Allocated memory is still 165.7MB. Free memory is still 133.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.26ms. Allocated memory is still 165.7MB. Free memory was 130.3MB in the beginning and 116.6MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.68ms. Allocated memory is still 165.7MB. Free memory was 116.6MB in the beginning and 114.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 503.51ms. Allocated memory is still 165.7MB. Free memory was 114.6MB in the beginning and 96.8MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Referee took 12488.13ms. Allocated memory is still 165.7MB. Free memory was 96.8MB in the beginning and 113.7MB in the end (delta: -16.9MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:28:23,506 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... ### Bit-precise run ### This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:28:25,628 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:28:25,704 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Bitvector.epf [2024-09-20 13:28:25,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:28:25,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:28:25,749 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:28:25,751 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:28:25,751 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:28:25,752 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:28:25,756 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:28:25,756 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:28:25,756 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:28:25,757 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:28:25,757 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:28:25,757 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:28:25,757 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:28:25,758 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:28:25,758 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:28:25,758 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:28:25,758 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:28:25,758 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:28:25,759 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:28:25,759 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:28:25,759 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-09-20 13:28:25,759 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-09-20 13:28:25,760 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:28:25,760 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-09-20 13:28:25,760 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:28:25,760 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:28:25,760 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:28:25,761 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:28:25,761 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:28:25,761 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:28:25,761 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:28:25,762 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:28:25,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:28:25,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:28:25,763 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:28:25,763 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:28:25,763 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-09-20 13:28:25,763 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-09-20 13:28:25,764 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:28:25,764 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:28:25,764 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:28:25,764 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:28:25,765 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-09-20 13:28:25,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:28:26,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:28:26,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:28:26,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:28:26,086 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:28:26,086 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:28:26,088 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/lcm2_unwindbound20.yml/witness-2.1.yml [2024-09-20 13:28:26,147 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:28:26,148 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:28:26,148 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2024-09-20 13:28:27,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:28:27,986 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:28:27,988 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound20.c [2024-09-20 13:28:27,996 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/7bd0339d0/7aa4eca1049247b3b2a7dfb45317edf4/FLAG5a54ca0c6 [2024-09-20 13:28:28,379 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/7bd0339d0/7aa4eca1049247b3b2a7dfb45317edf4 [2024-09-20 13:28:28,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:28:28,384 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:28:28,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:28:28,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:28:28,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:28:28,393 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 01:28:26" (1/2) ... [2024-09-20 13:28:28,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c653a38 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:28:28, skipping insertion in model container [2024-09-20 13:28:28,397 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 01:28:26" (1/2) ... [2024-09-20 13:28:28,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6da2a546 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:28:28, skipping insertion in model container [2024-09-20 13:28:28,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:28" (2/2) ... [2024-09-20 13:28:28,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c653a38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28, skipping insertion in model container [2024-09-20 13:28:28,400 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:28:28" (2/2) ... [2024-09-20 13:28:28,409 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:28:28,410 INFO L1541 ArrayList]: Loop invariant at [L36-L49] ((((((unsigned long long) b * a) % 2147483648) * 2) == (((__int128) ((unsigned long long) y * v) + ((unsigned long long) x * u)) % 4294967296)) && (\old(counter) == 0)) [2024-09-20 13:28:28,410 INFO L1541 ArrayList]: Function contract at [L20]: requires (counter == 0), ensures (\old(counter) == 0) [2024-09-20 13:28:28,411 INFO L1541 ArrayList]: Function contract at [L8]: requires (counter == 0), ensures (counter == 0) [2024-09-20 13:28:28,411 INFO L1541 ArrayList]: Function contract at [L11]: requires (1 <= \old(cond)), ensures (1 <= \old(cond)) [2024-09-20 13:28:28,428 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:28:28,612 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/lcm2_unwindbound20.c[537,550] [2024-09-20 13:28:28,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:28:28,647 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-20 13:28:28,681 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/lcm2_unwindbound20.c[537,550] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-20 13:28:28,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:28:28,705 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:28:28,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28 WrapperNode [2024-09-20 13:28:28,706 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:28:28,707 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:28:28,707 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:28:28,707 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:28:28,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28" (1/1) ... [2024-09-20 13:28:28,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28" (1/1) ... [2024-09-20 13:28:28,727 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28" (1/1) ... [2024-09-20 13:28:28,737 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure assume_abort_if_not is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 13:28:28,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28" (1/1) ... [2024-09-20 13:28:28,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28" (1/1) ... [2024-09-20 13:28:28,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28" (1/1) ... [2024-09-20 13:28:28,754 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28" (1/1) ... [2024-09-20 13:28:28,760 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28" (1/1) ... [2024-09-20 13:28:28,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28" (1/1) ... [2024-09-20 13:28:28,765 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:28:28,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:28:28,767 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:28:28,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:28:28,768 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28" (1/1) ... [2024-09-20 13:28:28,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:28:28,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:28:28,794 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 13:28:28,797 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 13:28:28,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:28:28,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:28:28,835 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:28:28,835 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-20 13:28:28,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:28:28,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:28:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:28:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:28:28,835 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:28:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:28:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-20 13:28:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-20 13:28:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:28:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:28:28,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:28:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-09-20 13:28:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:28:28,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2024-09-20 13:28:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2024-09-20 13:28:28,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:28:28,904 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:28:28,906 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:28:28,928 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:28:28,963 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:28:29,465 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:28:29,484 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:28:29,508 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:28:29,509 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:28:29,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:29 BoogieIcfgContainer [2024-09-20 13:28:29,509 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:28:29,510 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:28:29,510 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:28:29,510 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:28:29,510 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 01:28:26" (1/4) ... [2024-09-20 13:28:29,511 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@44548b44 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:28:29, skipping insertion in model container [2024-09-20 13:28:29,511 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:28:28" (2/4) ... [2024-09-20 13:28:29,511 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@44548b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:28:29, skipping insertion in model container [2024-09-20 13:28:29,512 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:28:28" (3/4) ... [2024-09-20 13:28:29,512 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@44548b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:28:29, skipping insertion in model container [2024-09-20 13:28:29,512 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:28:29" (4/4) ... [2024-09-20 13:28:29,513 INFO L79 RefereeObserver]: Analyzing ICFG lcm2_unwindbound20.c [2024-09-20 13:28:29,518 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-20 13:28:29,519 INFO L373 InvariantChecker]: Will check inductivity from ENTRY assume_abort_if_notENTRY to ERROR_LOC assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:28:29,519 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:28:29,520 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr5REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:28:29,520 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-20 13:28:29,522 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-20 13:28:29,522 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr7ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 10 edges. [2024-09-20 13:28:29,522 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to ERROR_LOC mainErr6REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 8 edges. [2024-09-20 13:28:29,522 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 13:28:29,523 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 13:28:29,523 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 13:28:29,523 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr3REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:28:29,523 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 7 edges. [2024-09-20 13:28:29,523 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L42-2 to LOOP_INVARIANT_ERROR_LOC mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 8 edges. [2024-09-20 13:28:29,524 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 8 loop-free subgraphs from procedure entry to error location, 3 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from loop head to loop head [2024-09-20 13:28:29,573 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-20 13:28:29,574 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:29,575 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:29,575 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:29,576 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:29,578 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:29,590 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-20 13:28:29,592 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:29,592 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:29,592 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:29,593 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:29,596 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:29,613 INFO L520 InvariantChecker]: The annotation(s) from entry assume_abort_if_notENTRY to error location assume_abort_if_notErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:28:29,649 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:28:29,650 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:29,650 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:29,650 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:29,650 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:29,650 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:29,653 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:28:29,653 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:29,653 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:29,653 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:29,653 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:29,654 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:29,655 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:29,689 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:28:29,693 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:29,693 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:29,694 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:29,694 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:29,694 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:29,710 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:28:29,714 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:29,714 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:29,715 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:29,715 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:29,715 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:33,752 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:28:33,786 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-20 13:28:33,787 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:33,787 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:33,787 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:33,787 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:33,787 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:33,788 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-20 13:28:33,788 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:33,788 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:33,789 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:33,789 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:33,789 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:33,791 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:33,806 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:28:33,806 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:33,806 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:33,807 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:33,807 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:33,807 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:33,809 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:28:33,809 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:33,809 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:33,809 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:33,809 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:33,810 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:33,811 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:33,832 INFO L314 BlockEncoder]: Initial Icfg 9 locations, 10 edges [2024-09-20 13:28:33,832 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:33,832 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:33,832 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:33,833 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:33,833 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:33,872 INFO L101 BaseMinimizeStates]: Removed 22 edges and 7 locations by large block encoding [2024-09-20 13:28:33,872 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:33,873 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:33,873 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:33,873 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:33,874 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:33,877 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr7ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:28:33,896 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 8 edges [2024-09-20 13:28:33,896 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:33,897 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:33,897 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:33,897 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:33,897 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:33,915 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-20 13:28:33,915 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:33,915 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:33,915 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:33,915 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:33,919 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:34,129 INFO L520 InvariantChecker]: The annotation(s) from loop head L42-2 to error location mainErr6REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:34,148 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:28:34,148 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:34,149 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:34,149 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:34,149 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:34,149 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:34,150 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:28:34,150 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:34,151 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:34,151 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:34,151 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:34,151 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:34,153 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:34,162 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:28:34,162 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:34,162 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:34,163 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:34,163 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:34,163 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:34,165 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:28:34,165 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:34,165 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:34,165 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:34,166 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:34,166 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:34,167 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:28:34,176 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:28:34,176 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:34,176 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:34,177 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:34,177 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:34,177 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:34,178 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:28:34,178 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:34,178 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:34,179 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:34,179 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:34,179 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:34,180 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:28:34,188 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 5 edges [2024-09-20 13:28:34,189 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:34,189 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:34,189 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:34,189 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:34,189 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:34,191 INFO L101 BaseMinimizeStates]: Removed 8 edges and 4 locations by large block encoding [2024-09-20 13:28:34,191 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:34,191 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:34,192 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:34,192 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:34,192 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:34,193 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr3REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-20 13:28:34,203 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 7 edges [2024-09-20 13:28:34,203 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:34,203 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:34,203 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:34,203 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:34,204 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:34,208 INFO L101 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2024-09-20 13:28:34,208 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:34,209 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:34,209 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:34,209 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:34,209 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:34,231 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr4ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-20 13:28:34,244 INFO L314 BlockEncoder]: Initial Icfg 8 locations, 8 edges [2024-09-20 13:28:34,245 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:28:34,245 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:28:34,245 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:28:34,245 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:28:34,245 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:34,275 INFO L101 BaseMinimizeStates]: Removed 14 edges and 6 locations by large block encoding [2024-09-20 13:28:34,275 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:28:34,275 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:28:34,275 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:28:34,276 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:28:34,282 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:28:38,377 INFO L516 InvariantChecker]: unknown inductivity: todo good error message [2024-09-20 13:28:38,401 INFO L58 RefereeStarter]: Insufficient resources for checking whether annotation is a valid proof of correctness. [2024-09-20 13:28:38,402 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@44548b44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:28:38, skipping insertion in model container [2024-09-20 13:28:38,402 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:28:38,404 INFO L158 Benchmark]: Toolchain (without parser) took 10019.59ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 34.5MB in the beginning and 48.9MB in the end (delta: -14.4MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2024-09-20 13:28:38,404 INFO L158 Benchmark]: Witness Parser took 0.32ms. Allocated memory is still 52.4MB. Free memory is still 25.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:28:38,404 INFO L158 Benchmark]: CDTParser took 1.08ms. Allocated memory is still 52.4MB. Free memory is still 34.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:28:38,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.25ms. Allocated memory is still 65.0MB. Free memory was 34.3MB in the beginning and 35.9MB in the end (delta: -1.6MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2024-09-20 13:28:38,405 INFO L158 Benchmark]: Boogie Preprocessor took 58.86ms. Allocated memory is still 65.0MB. Free memory was 35.9MB in the beginning and 33.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:28:38,406 INFO L158 Benchmark]: RCFGBuilder took 742.75ms. Allocated memory is still 65.0MB. Free memory was 33.6MB in the beginning and 36.1MB in the end (delta: -2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:28:38,409 INFO L158 Benchmark]: Referee took 8892.80ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 36.1MB in the beginning and 48.9MB in the end (delta: -12.8MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2024-09-20 13:28:38,411 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is a valid proof of correctness. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to check that procedure precondition always holds at line 37. Insufficient resources for checking whether annotation is valid for all loop-free paths from loop head at line 36 to loop head at line 36. Annotation is valid for all loop-free paths from entry of procedure assume_abort_if_not to exit of procedure assume_abort_if_not. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 25. Annotation is valid for all loop-free paths from entry of procedure main to check that procedure precondition always holds at line 26. Annotation is valid for all loop-free paths from entry of procedure main 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 13. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 36. Annotation is valid for all loop-free paths from loop head at line 36 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 entry of procedure main to check that procedure precondition always holds at line 25. 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 36 to check that procedure precondition always holds at line 36. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.32ms. Allocated memory is still 52.4MB. Free memory is still 25.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.08ms. Allocated memory is still 52.4MB. Free memory is still 34.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.25ms. Allocated memory is still 65.0MB. Free memory was 34.3MB in the beginning and 35.9MB in the end (delta: -1.6MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.86ms. Allocated memory is still 65.0MB. Free memory was 35.9MB in the beginning and 33.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 742.75ms. Allocated memory is still 65.0MB. Free memory was 33.6MB in the beginning and 36.1MB in the end (delta: -2.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 8892.80ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 36.1MB in the beginning and 48.9MB in the end (delta: -12.8MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-09-20 13:28:38,448 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...