This is Ultimate 0.2.4-tmp.dk.referee-eval-27b4987-m [2024-09-21 19:06:32,128 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-21 19:06:32,185 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-21 19:06:32,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-21 19:06:32,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-21 19:06:32,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-21 19:06:32,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-21 19:06:32,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-21 19:06:32,223 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-21 19:06:32,224 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-21 19:06:32,225 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-21 19:06:32,225 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-21 19:06:32,226 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-21 19:06:32,228 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-21 19:06:32,228 INFO L153 SettingsManager]: * Use SBE=true [2024-09-21 19:06:32,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-21 19:06:32,229 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-21 19:06:32,229 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-21 19:06:32,229 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-21 19:06:32,229 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-21 19:06:32,230 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-21 19:06:32,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-21 19:06:32,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-21 19:06:32,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-21 19:06:32,235 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-21 19:06:32,235 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-21 19:06:32,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-21 19:06:32,236 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-21 19:06:32,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-21 19:06:32,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-21 19:06:32,236 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-21 19:06:32,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-21 19:06:32,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-21 19:06:32,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:06:32,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-21 19:06:32,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-21 19:06:32,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-21 19:06:32,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-21 19:06:32,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-21 19:06:32,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-21 19:06:32,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-21 19:06:32,240 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-21 19:06:32,241 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-21 19:06:32,241 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-21 19:06:32,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-21 19:06:32,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-21 19:06:32,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-21 19:06:32,531 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-21 19:06:32,533 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-21 19:06:32,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/cpachecker-verification-files/SV-COMP24_unreach-call/MADWiFi-encode_ie_ok.yml/output/witness-2.1.yml [2024-09-21 19:06:32,630 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-21 19:06:32,630 INFO L274 PluginConnector]: CDTParser initialized [2024-09-21 19:06:32,632 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2024-09-21 19:06:34,050 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-21 19:06:34,254 INFO L384 CDTParser]: Found 1 translation units. [2024-09-21 19:06:34,255 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-invgen/MADWiFi-encode_ie_ok.i [2024-09-21 19:06:34,262 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/45aa2a281/0b0240ca979e4b34a86d312e892b63e9/FLAG34a5239f4 [2024-09-21 19:06:34,637 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/45aa2a281/0b0240ca979e4b34a86d312e892b63e9 [2024-09-21 19:06:34,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-21 19:06:34,638 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-21 19:06:34,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-21 19:06:34,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-21 19:06:34,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-21 19:06:34,648 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 07:06:32" (1/2) ... [2024-09-21 19:06:34,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c6482f3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:06:34, skipping insertion in model container [2024-09-21 19:06:34,652 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 07:06:32" (1/2) ... [2024-09-21 19:06:34,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@24e9cc46 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 21.09 07:06:34, skipping insertion in model container [2024-09-21 19:06:34,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:06:34" (2/2) ... [2024-09-21 19:06:34,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c6482f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34, skipping insertion in model container [2024-09-21 19:06:34,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 07:06:34" (2/2) ... [2024-09-21 19:06:34,665 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-21 19:06:34,665 INFO L1541 ArrayList]: Loop invariant at [L49-L53] 1 [2024-09-21 19:06:34,666 INFO L1541 ArrayList]: Function contract at [L24]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:06:34,666 INFO L1541 ArrayList]: Function contract at [L12]: requires 1, ensures 1 [2024-09-21 19:06:34,666 INFO L1541 ArrayList]: Function contract at [L17]: requires 1, ensures (!(1) || (1)) [2024-09-21 19:06:34,689 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-21 19:06:34,858 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-invgen/MADWiFi-encode_ie_ok.i[893,906] [2024-09-21 19:06:34,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:06:34,882 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global Start Parsing Global Start Parsing Global [2024-09-21 19:06:34,923 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-invgen/MADWiFi-encode_ie_ok.i[893,906] Start Parsing Global Start Parsing Global Start Parsing Local [2024-09-21 19:06:34,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-21 19:06:34,962 INFO L204 MainTranslator]: Completed translation [2024-09-21 19:06:34,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34 WrapperNode [2024-09-21 19:06:34,963 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-21 19:06:34,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-21 19:06:34,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-21 19:06:34,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-21 19:06:34,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34" (1/1) ... [2024-09-21 19:06:34,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34" (1/1) ... [2024-09-21 19:06:34,988 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34" (1/1) ... [2024-09-21 19:06:34,998 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure reach_error is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-21 19:06:34,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34" (1/1) ... [2024-09-21 19:06:34,999 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34" (1/1) ... [2024-09-21 19:06:35,002 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34" (1/1) ... [2024-09-21 19:06:35,005 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34" (1/1) ... [2024-09-21 19:06:35,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34" (1/1) ... [2024-09-21 19:06:35,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34" (1/1) ... [2024-09-21 19:06:35,009 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-21 19:06:35,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-21 19:06:35,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-21 19:06:35,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-21 19:06:35,011 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34" (1/1) ... [2024-09-21 19:06:35,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-21 19:06:35,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-21 19:06:35,043 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 19:06:35,045 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 19:06:35,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-21 19:06:35,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-21 19:06:35,089 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-21 19:06:35,090 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-09-21 19:06:35,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-21 19:06:35,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-21 19:06:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-21 19:06:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-21 19:06:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2024-09-21 19:06:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2024-09-21 19:06:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-21 19:06:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-21 19:06:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-09-21 19:06:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-21 19:06:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-21 19:06:35,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-21 19:06:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-21 19:06:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-21 19:06:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-21 19:06:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-21 19:06:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-21 19:06:35,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-21 19:06:35,170 INFO L242 CfgBuilder]: Building ICFG [2024-09-21 19:06:35,174 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-21 19:06:35,179 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:06:35,239 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:06:35,317 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-21 19:06:35,324 INFO L291 CfgBuilder]: Performing block encoding [2024-09-21 19:06:35,350 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-21 19:06:35,350 INFO L318 CfgBuilder]: Removed 2 assume(true) statements. [2024-09-21 19:06:35,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:06:35 BoogieIcfgContainer [2024-09-21 19:06:35,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-21 19:06:35,351 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-21 19:06:35,351 INFO L270 PluginConnector]: Initializing Referee... [2024-09-21 19:06:35,352 INFO L274 PluginConnector]: Referee initialized [2024-09-21 19:06:35,352 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 07:06:32" (1/4) ... [2024-09-21 19:06:35,353 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4138d35f and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 21.09 07:06:35, skipping insertion in model container [2024-09-21 19:06:35,353 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 21.09 07:06:34" (2/4) ... [2024-09-21 19:06:35,356 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4138d35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:06:35, skipping insertion in model container [2024-09-21 19:06:35,356 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 07:06:34" (3/4) ... [2024-09-21 19:06:35,357 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4138d35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 21.09 07:06:35, skipping insertion in model container [2024-09-21 19:06:35,357 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 07:06:35" (4/4) ... [2024-09-21 19:06:35,358 INFO L79 RefereeObserver]: Analyzing ICFG MADWiFi-encode_ie_ok.i [2024-09-21 19:06:35,362 INFO L113 InvariantChecker]: Found 1 loops. [2024-09-21 19:06:35,363 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L49-4 to ERROR_LOC mainErr2REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-21 19:06:35,363 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L49-4 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 6 edges. [2024-09-21 19:06:35,363 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 10 edges. [2024-09-21 19:06:35,363 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L49-4 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 3 edges. [2024-09-21 19:06:35,363 INFO L373 InvariantChecker]: Will check inductivity from ENTRY reach_errorENTRY to ERROR_LOC reach_errorErr0ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 4 edges. [2024-09-21 19:06:35,364 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 19:06:35,364 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 19:06:35,364 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 19:06:35,364 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L49-4 to ERROR_LOC mainErr3ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 4 edges. [2024-09-21 19:06:35,364 INFO L373 InvariantChecker]: Will check inductivity from ENTRY mainENTRY to ERROR_LOC mainErr3ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 17 edges. [2024-09-21 19:06:35,364 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, 3 loop-free subgraphs from loop head to error location, 5 loop-free subgraphs from procedure entry to error location [2024-09-21 19:06:35,401 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-21 19:06:35,402 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:35,403 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:35,404 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:35,404 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:35,406 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,412 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-21 19:06:35,414 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,414 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:35,414 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:35,414 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:35,415 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:35,436 INFO L520 InvariantChecker]: The annotation(s) from loop head L49-4 to error location mainErr2REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:06:35,450 INFO L314 BlockEncoder]: Initial Icfg 7 locations, 6 edges [2024-09-21 19:06:35,450 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:35,450 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:35,451 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:35,451 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:35,451 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,456 INFO L101 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding [2024-09-21 19:06:35,458 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,458 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:35,459 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:35,459 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:35,459 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:35,461 INFO L520 InvariantChecker]: The annotation(s) from loop head L49-4 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:06:35,473 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 10 edges [2024-09-21 19:06:35,474 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:35,474 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:35,474 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:35,474 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:35,475 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,512 INFO L101 BaseMinimizeStates]: Removed 18 edges and 9 locations by large block encoding [2024-09-21 19:06:35,512 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,513 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:35,513 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:35,513 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:35,513 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:35,522 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-09-21 19:06:35,534 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:06:35,536 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:35,536 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:35,536 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:35,537 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:35,537 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,538 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:06:35,539 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,539 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:35,539 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:35,539 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:35,540 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:35,542 INFO L520 InvariantChecker]: The annotation(s) from loop head L49-4 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:06:35,549 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-21 19:06:35,549 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:35,549 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:35,549 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:35,549 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:35,550 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,550 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-21 19:06:35,551 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,551 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:35,551 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:35,551 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:35,554 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:35,555 INFO L520 InvariantChecker]: The annotation(s) from entry reach_errorENTRY to error location reach_errorErr0ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:06:35,561 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-09-21 19:06:35,561 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:35,561 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:35,562 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:35,562 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:35,562 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,562 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-09-21 19:06:35,563 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,563 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:35,563 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:35,563 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:35,563 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:35,565 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to error location ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-09-21 19:06:35,570 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-21 19:06:35,571 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:35,571 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:35,571 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:35,571 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:35,571 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,573 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-21 19:06:35,574 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,574 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:35,574 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:35,574 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:35,575 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:35,576 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:06:35,581 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-21 19:06:35,582 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:35,582 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:35,582 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:35,582 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:35,582 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,584 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-21 19:06:35,584 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,584 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:35,584 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:35,584 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:35,585 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:35,598 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-09-21 19:06:35,598 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:35,599 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:35,599 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:35,599 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:35,599 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,601 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-09-21 19:06:35,602 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,602 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:35,602 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:35,602 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:35,602 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:35,605 INFO L520 InvariantChecker]: The annotation(s) from loop head L49-4 to error location mainErr3ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:06:35,615 INFO L314 BlockEncoder]: Initial Icfg 11 locations, 17 edges [2024-09-21 19:06:35,615 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-21 19:06:35,615 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-21 19:06:35,615 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-21 19:06:35,616 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-21 19:06:35,616 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,639 INFO L101 BaseMinimizeStates]: Removed 39 edges and 9 locations by large block encoding [2024-09-21 19:06:35,639 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-21 19:06:35,640 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-21 19:06:35,640 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-21 19:06:35,640 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-21 19:06:35,642 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-21 19:06:35,644 INFO L520 InvariantChecker]: The annotation(s) from entry mainENTRY to error location mainErr3ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-21 19:06:35,651 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-21 19:06:35,652 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@4138d35f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 21.09 07:06:35, skipping insertion in model container [2024-09-21 19:06:35,652 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-21 19:06:35,654 INFO L158 Benchmark]: Toolchain (without parser) took 1015.15ms. Allocated memory is still 186.6MB. Free memory was 117.8MB in the beginning and 115.4MB in the end (delta: 2.4MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2024-09-21 19:06:35,655 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:06:35,655 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 186.6MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:06:35,656 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.64ms. Allocated memory is still 186.6MB. Free memory was 117.6MB in the beginning and 158.7MB in the end (delta: -41.1MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-09-21 19:06:35,657 INFO L158 Benchmark]: Boogie Preprocessor took 44.69ms. Allocated memory is still 186.6MB. Free memory was 158.7MB in the beginning and 157.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-21 19:06:35,657 INFO L158 Benchmark]: RCFGBuilder took 340.96ms. Allocated memory is still 186.6MB. Free memory was 156.6MB in the beginning and 143.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-21 19:06:35,658 INFO L158 Benchmark]: Referee took 301.22ms. Allocated memory is still 186.6MB. Free memory was 143.3MB in the beginning and 115.4MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-09-21 19:06:35,661 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 19. 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 49 to check that procedure precondition always holds at line 50. Annotation is valid for all loop-free paths from entry of procedure main to exit of procedure main. Annotation is valid for all loop-free paths from entry of procedure reach_error to exit of procedure reach_error. Annotation is valid for all loop-free paths from loop head at line 49 to check that procedure precondition always holds at line 50. Annotation is valid for all loop-free paths from loop head at line 49 to loop head at line 49. 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 main to loop head at line 49. Annotation is valid for all loop-free paths from loop head at line 49 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. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.17ms. Allocated memory is still 186.6MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.64ms. Allocated memory is still 186.6MB. Free memory was 117.6MB in the beginning and 158.7MB in the end (delta: -41.1MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.69ms. Allocated memory is still 186.6MB. Free memory was 158.7MB in the beginning and 157.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 340.96ms. Allocated memory is still 186.6MB. Free memory was 156.6MB in the beginning and 143.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 301.22ms. Allocated memory is still 186.6MB. Free memory was 143.3MB in the beginning and 115.4MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-21 19:06:35,692 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...