This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:07:53,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:07:53,302 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:07:53,308 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:07:53,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:07:53,338 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:07:53,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:07:53,340 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:07:53,340 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:07:53,342 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:07:53,342 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:07:53,343 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:07:53,343 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:07:53,344 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:07:53,345 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:07:53,346 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:07:53,346 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:07:53,346 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:07:53,347 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:07:53,347 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:07:53,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:07:53,348 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:07:53,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:07:53,352 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:07:53,352 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:07:53,352 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:07:53,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:07:53,353 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:07:53,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:07:53,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:07:53,353 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:07:53,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:07:53,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:07:53,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:53,354 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:07:53,354 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:07:53,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:07:53,355 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:07:53,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:07:53,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:07:53,355 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:07:53,357 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:07:53,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:07:53,368 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/certificate-witnesses-artifact/referee/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:07:53,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:07:53,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:07:53,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:07:53,670 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:07:53,670 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:07:53,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invariants/eq1.c [2024-09-21 19:07:55,116 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:07:55,380 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:07:55,381 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invariants/eq1.c [2024-09-21 19:07:55,391 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/679574743/5123163dfd114ed89e4c640b8eda7948/FLAG5f19dee20 [2024-09-21 19:07:55,694 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/679574743/5123163dfd114ed89e4c640b8eda7948 [2024-09-21 19:07:55,696 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:07:55,697 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:07:55,697 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/eq1.yml/output/witness-2.1.yml [2024-09-21 19:07:55,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:07:55,747 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:07:55,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:55,749 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:07:55,754 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:07:55,754 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:55" (1/2) ... [2024-09-21 19:07:55,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@208c80e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:55, skipping insertion in model container [2024-09-21 19:07:55,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:07:55" (1/2) ... [2024-09-21 19:07:55,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7fa43c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:07:55, skipping insertion in model container [2024-09-21 19:07:55,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:55" (2/2) ... [2024-09-21 19:07:55,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@208c80e4 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:55, skipping insertion in model container [2024-09-21 19:07:55,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:55" (2/2) ... [2024-09-21 19:07:55,769 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:07:55,770 INFO L1541 ArrayList]: Loop invariant at [L23-L29] ( ( z == y ) && ( x == w ) ) [2024-09-21 19:07:55,770 INFO L1541 ArrayList]: Function contract at [L18]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:55,771 INFO L1541 ArrayList]: Function contract at [L12]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:07:55,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:07:55,934 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invariants/eq1.c[593,606] [2024-09-21 19:07:55,956 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:55,966 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-21 19:07:56,006 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invariants/eq1.c[593,606] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-21 19:07:56,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:07:56,030 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:07:56,031 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:07:56 WrapperNode [2024-09-21 19:07:56,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:07:56,032 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:07:56,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:07:56,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:07:56,045 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 21.09 07:07:56" (1/1) ... [2024-09-21 19:07:56,046 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 21.09 07:07:56" (1/1) ... [2024-09-21 19:07:56,055 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 21.09 07:07:56" (1/1) ... [2024-09-21 19:07:56,064 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-21 19:07:56,064 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 21.09 07:07:56" (1/1) ... [2024-09-21 19:07:56,064 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 21.09 07:07:56" (1/1) ... [2024-09-21 19:07:56,071 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 21.09 07:07:56" (1/1) ... [2024-09-21 19:07:56,076 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 21.09 07:07:56" (1/1) ... [2024-09-21 19:07:56,077 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 21.09 07:07:56" (1/1) ... [2024-09-21 19:07:56,078 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 21.09 07:07:56" (1/1) ... [2024-09-21 19:07:56,079 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:07:56,080 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:07:56,080 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:07:56,080 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:07:56,081 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 21.09 07:07:56" (1/1) ... [2024-09-21 19:07:56,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:07:56,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:07:56,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-21 19:07:56,112 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-21 19:07:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:07:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:07:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:07:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-21 19:07:56,152 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:07:56,152 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:07:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:07:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:07:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:07:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2024-09-21 19:07:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:07:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:07:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:07:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-21 19:07:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:07:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-21 19:07:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-21 19:07:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:07:56,223 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:07:56,225 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:07:56,245 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:56,340 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:07:56,354 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:07:56,378 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:07:56,378 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-21 19:07:56,378 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:56 BoogieIcfgContainer [2024-09-21 19:07:56,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:07:56,379 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:07:56,379 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:07:56,380 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:07:56,380 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:07:55" (1/4) ... [2024-09-21 19:07:56,380 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6d81ac90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:07:56, skipping insertion in model container [2024-09-21 19:07:56,380 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 21.09 07:07:55" (2/4) ... [2024-09-21 19:07:56,381 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6d81ac90 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:56, skipping insertion in model container [2024-09-21 19:07:56,381 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 21.09 07:07:56" (3/4) ... [2024-09-21 19:07:56,381 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6d81ac90 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:07:56, skipping insertion in model container [2024-09-21 19:07:56,381 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:07:56" (4/4) ... [2024-09-21 19:07:56,382 INFO L79 RefereeObserver]: Analyzing ICFG eq1.c [2024-09-21 19:07:56,385 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-21 19:07:56,386 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 5 edges. [2024-09-21 19:07:56,386 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to ERROR_LOC mainErr2ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 7 edges. [2024-09-21 19:07:56,387 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-09-21 19:07:56,387 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L24-2 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-21 19:07:56,387 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 2 edges. [2024-09-21 19:07:56,387 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-21 19:07:56,387 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-21 19:07:56,388 INFO L131 InvariantChecker]: Will check 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to loop head, 3 loop-free subgraphs from procedure entry to error location, 2 loop-free subgraphs from loop head to error location [2024-09-21 19:07:56,421 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 19:07:56,422 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,422 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,423 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,424 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,426 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,441 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 19:07:56,446 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,446 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,446 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,447 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,451 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,469 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:07:56,490 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 7 edges [2024-09-21 19:07:56,491 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,491 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,491 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,491 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,491 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,506 INFO L101 BaseMinimizeStates]: Removed 14 edges and 5 locations by large block encoding [2024-09-21 19:07:56,506 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,506 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,506 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,506 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,507 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,513 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to error location mainErr2ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:07:56,531 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:07:56,531 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,531 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,531 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,531 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,532 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,534 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:07:56,535 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,536 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,536 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,536 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,536 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,541 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:07:56,550 INFO L314 BlockEncoder]: Initial Icfg 6 locations, 6 edges [2024-09-21 19:07:56,550 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,550 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,550 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,550 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,550 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,581 INFO L101 BaseMinimizeStates]: Removed 10 edges and 4 locations by large block encoding [2024-09-21 19:07:56,581 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,581 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,582 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,582 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,590 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,617 INFO L520 InvariantChecker]: The annotation(s) from loop head L24-2 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:07:56,628 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:07:56,630 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,630 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,631 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,631 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,631 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,632 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:07:56,634 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,634 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,634 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,634 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,634 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,636 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:07:56,650 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 19:07:56,650 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,651 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,651 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,651 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,651 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,654 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 19:07:56,654 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,654 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,654 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,655 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,655 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,657 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:07:56,665 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:07:56,667 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:07:56,667 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:07:56,668 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:07:56,668 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:07:56,668 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,669 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:07:56,670 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:07:56,670 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:07:56,670 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:07:56,670 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:07:56,670 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:07:56,692 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-21 19:07:56,693 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@6d81ac90 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 21.09 07:07:56, skipping insertion in model container [2024-09-21 19:07:56,693 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-21 19:07:56,694 INFO L158 Benchmark]: Toolchain (without parser) took 946.38ms. Allocated memory is still 161.5MB. Free memory was 125.5MB in the beginning and 78.3MB in the end (delta: 47.1MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2024-09-21 19:07:56,695 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 161.5MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:56,695 INFO L158 Benchmark]: Witness Parser took 0.13ms. Allocated memory is still 161.5MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:07:56,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.10ms. Allocated memory is still 161.5MB. Free memory was 125.0MB in the beginning and 111.9MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-21 19:07:56,696 INFO L158 Benchmark]: Boogie Preprocessor took 46.81ms. Allocated memory is still 161.5MB. Free memory was 111.9MB in the beginning and 109.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-21 19:07:56,697 INFO L158 Benchmark]: RCFGBuilder took 298.91ms. Allocated memory is still 161.5MB. Free memory was 109.8MB in the beginning and 98.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-21 19:07:56,697 INFO L158 Benchmark]: Referee took 313.75ms. Allocated memory is still 161.5MB. Free memory was 98.2MB in the beginning and 78.3MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-09-21 19:07:56,700 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee: - AnnotationCheckResult: Annotation is not a valid proof of correctness. Annotation is not a valid proof of correctness. Annotation is not valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 14. One counterexample starts in \old(cond)=0 and ends in \old(cond)=0, cond=0. Annotation is valid for all loop-free paths from loop head at line 23 to check that procedure precondition always holds at line 23. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from entry of procedure ULTIMATE.start to check that procedure precondition always holds at line -1. Annotation is valid for all loop-free paths from entry of procedure main to loop head at line 23. Annotation is valid for all loop-free paths from loop head at line 23 to loop head at line 23. Annotation is valid for all loop-free paths from loop head at line 23 to exit of procedure main. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 161.5MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.13ms. Allocated memory is still 161.5MB. Free memory is still 127.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.10ms. Allocated memory is still 161.5MB. Free memory was 125.0MB in the beginning and 111.9MB in the end (delta: 13.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.81ms. Allocated memory is still 161.5MB. Free memory was 111.9MB in the beginning and 109.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 298.91ms. Allocated memory is still 161.5MB. Free memory was 109.8MB in the beginning and 98.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 313.75ms. Allocated memory is still 161.5MB. Free memory was 98.2MB in the beginning and 78.3MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-21 19:07:56,722 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...