./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursified_loop-invariants/recursified_mod4.c --full-output --witness-type correctness_witness --validate ../results/automizer-verification-files/SV-COMP24_unreach-call/recursified_mod4.yml/witness-2.1.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f1d7dc9d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/referee/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/referee/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/referee/data -tc /storage/repos/certificate-witnesses-artifact/referee/config/RefereeReachWitnessValidation.xml -i ../sv-benchmarks/c/recursified_loop-invariants/recursified_mod4.c ../results/automizer-verification-files/SV-COMP24_unreach-call/recursified_mod4.yml/witness-2.1.yml -s /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.positions.where.we.compute.the.hoare.annotation None --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:29:44,722 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:29:44,807 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-09-20 13:29:44,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:29:44,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:29:44,843 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:29:44,844 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:29:44,844 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:29:44,845 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:29:44,846 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:29:44,846 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:29:44,847 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:29:44,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:29:44,848 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:29:44,850 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:29:44,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:29:44,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:29:44,850 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:29:44,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:29:44,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:29:44,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:29:44,852 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:29:44,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:29:44,852 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:29:44,853 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:29:44,853 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:29:44,853 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:29:44,854 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:29:44,854 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:29:44,855 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:29:44,855 INFO L153 SettingsManager]: * Future-live optimization=false [2024-09-20 13:29:44,855 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:29:44,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:29:44,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:29:44,856 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:29:44,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:29:44,857 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:29:44,857 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:29:44,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:29:44,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:29:44,858 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:29:44,858 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:29:44,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:29:44,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:29:45,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:29:45,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:29:45,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:29:45,112 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:29:45,112 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:29:45,113 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/recursified_mod4.yml/witness-2.1.yml [2024-09-20 13:29:45,196 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:29:45,196 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:29:45,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/recursified_loop-invariants/recursified_mod4.c [2024-09-20 13:29:46,577 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:29:46,745 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:29:46,746 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/recursified_loop-invariants/recursified_mod4.c [2024-09-20 13:29:46,753 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/3cb31fe69/453e7f58a1e7462aa7da4948febdc5d0/FLAG22c2fa4b3 [2024-09-20 13:29:46,765 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/3cb31fe69/453e7f58a1e7462aa7da4948febdc5d0 [2024-09-20 13:29:46,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:29:46,766 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2024-09-20 13:29:46,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:29:46,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:29:46,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:29:46,774 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 01:29:45" (1/2) ... [2024-09-20 13:29:46,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b1cb8e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:29:46, skipping insertion in model container [2024-09-20 13:29:46,775 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 01:29:45" (1/2) ... [2024-09-20 13:29:46,776 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@120c0e17 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:29:46, skipping insertion in model container [2024-09-20 13:29:46,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:46" (2/2) ... [2024-09-20 13:29:46,778 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b1cb8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:46, skipping insertion in model container [2024-09-20 13:29:46,778 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:46" (2/2) ... [2024-09-20 13:29:46,783 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:29:46,784 INFO L1541 ArrayList]: Function contract at [L21]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-20 13:29:46,801 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:29:46,954 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/recursified_loop-invariants/recursified_mod4.c[962,975] [2024-09-20 13:29:46,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:29:46,974 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:29:47,008 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/recursified_loop-invariants/recursified_mod4.c[962,975] [2024-09-20 13:29:47,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:29:47,023 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:29:47,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47 WrapperNode [2024-09-20 13:29:47,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:29:47,024 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:29:47,024 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:29:47,025 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:29:47,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47" (1/1) ... [2024-09-20 13:29:47,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47" (1/1) ... [2024-09-20 13:29:47,040 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47" (1/1) ... [2024-09-20 13:29:47,049 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure __VERIFIER_assert is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2024-09-20 13:29:47,049 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47" (1/1) ... [2024-09-20 13:29:47,050 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47" (1/1) ... [2024-09-20 13:29:47,053 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47" (1/1) ... [2024-09-20 13:29:47,055 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47" (1/1) ... [2024-09-20 13:29:47,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47" (1/1) ... [2024-09-20 13:29:47,056 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47" (1/1) ... [2024-09-20 13:29:47,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:29:47,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:29:47,058 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:29:47,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:29:47,060 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47" (1/1) ... [2024-09-20 13:29:47,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:29:47,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-09-20 13:29:47,086 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 13:29:47,088 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 13:29:47,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 13:29:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:29:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-09-20 13:29:47,127 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 13:29:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_13_to_14_0 [2024-09-20 13:29:47,128 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 13:29:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2024-09-20 13:29:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2024-09-20 13:29:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-09-20 13:29:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:29:47,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2024-09-20 13:29:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 13:29:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_13_to_14_0 [2024-09-20 13:29:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-20 13:29:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-20 13:29:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 13:29:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-09-20 13:29:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-20 13:29:47,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-09-20 13:29:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 13:29:47,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:29:47,185 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:29:47,189 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:29:47,308 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-09-20 13:29:47,326 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:29:47,374 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:29:47,376 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-20 13:29:47,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:47 BoogieIcfgContainer [2024-09-20 13:29:47,376 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:29:47,378 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-09-20 13:29:47,378 INFO L270 PluginConnector]: Initializing Referee... [2024-09-20 13:29:47,378 INFO L274 PluginConnector]: Referee initialized [2024-09-20 13:29:47,379 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 01:29:45" (1/4) ... [2024-09-20 13:29:47,380 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5ba3ee98 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 20.09 01:29:47, skipping insertion in model container [2024-09-20 13:29:47,380 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 20.09 01:29:46" (2/4) ... [2024-09-20 13:29:47,380 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5ba3ee98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:29:47, skipping insertion in model container [2024-09-20 13:29:47,381 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:47" (3/4) ... [2024-09-20 13:29:47,381 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5ba3ee98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 20.09 01:29:47, skipping insertion in model container [2024-09-20 13:29:47,381 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:47" (4/4) ... [2024-09-20 13:29:47,383 INFO L79 RefereeObserver]: Analyzing ICFG recursified_mod4.c [2024-09-20 13:29:47,386 INFO L113 InvariantChecker]: Found 0 loops. [2024-09-20 13:29:47,387 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to ERROR_LOC mainErr0REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-09-20 13:29:47,387 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-09-20 13:29:47,387 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-09-20 13:29:47,388 INFO L131 InvariantChecker]: Will check 3 loop-free subgraphs from procedure entry to error location [2024-09-20 13:29:47,436 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 4 edges [2024-09-20 13:29:47,440 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:29:47,441 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:29:47,441 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:29:47,443 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:29:47,445 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:29:47,462 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2024-09-20 13:29:47,463 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:29:47,463 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:29:47,464 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:29:47,464 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:29:47,465 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:29:47,512 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-09-20 13:29:47,512 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:29:47,513 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:29:47,513 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:29:47,514 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:29:47,514 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:29:47,521 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-09-20 13:29:47,521 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:29:47,521 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:29:47,521 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:29:47,521 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:29:47,524 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:29:47,525 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-09-20 13:29:47,535 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-09-20 13:29:47,535 INFO L264 BlockEncoder]: Using Maximize final states [2024-09-20 13:29:47,535 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-09-20 13:29:47,536 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-09-20 13:29:47,536 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-09-20 13:29:47,536 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:29:47,538 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-09-20 13:29:47,538 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-09-20 13:29:47,538 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-09-20 13:29:47,539 INFO L238 BlockEncoder]: Using Create parallel compositions if possible [2024-09-20 13:29:47,539 INFO L68 ParallelComposer]: Creating parallel compositions [2024-09-20 13:29:47,539 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-09-20 13:29:47,544 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-09-20 13:29:47,552 INFO L58 RefereeStarter]: Annotation is not a valid proof of correctness. [2024-09-20 13:29:47,553 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@5ba3ee98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 20.09 01:29:47, skipping insertion in model container [2024-09-20 13:29:47,553 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-09-20 13:29:47,555 INFO L158 Benchmark]: Toolchain (without parser) took 787.76ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 69.1MB in the beginning and 138.8MB in the end (delta: -69.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:29:47,556 INFO L158 Benchmark]: Witness Parser took 0.86ms. Allocated memory is still 142.6MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:29:47,556 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 142.6MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:29:47,558 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.04ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 69.0MB in the beginning and 162.0MB in the end (delta: -93.0MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-09-20 13:29:47,559 INFO L158 Benchmark]: Boogie Preprocessor took 33.25ms. Allocated memory is still 195.0MB. Free memory was 162.0MB in the beginning and 161.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:29:47,559 INFO L158 Benchmark]: RCFGBuilder took 318.22ms. Allocated memory is still 195.0MB. Free memory was 159.9MB in the beginning and 148.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:29:47,560 INFO L158 Benchmark]: Referee took 175.84ms. Allocated memory is still 195.0MB. Free memory was 148.4MB in the beginning and 138.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 13:29:47,562 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 main to check that procedure precondition always holds at line 56. One counterexample starts in and ends in x={-1:0}. 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 25. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.86ms. Allocated memory is still 142.6MB. Free memory is still 92.8MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.09ms. Allocated memory is still 142.6MB. Free memory is still 114.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.04ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 69.0MB in the beginning and 162.0MB in the end (delta: -93.0MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.25ms. Allocated memory is still 195.0MB. Free memory was 162.0MB in the beginning and 161.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 318.22ms. Allocated memory is still 195.0MB. Free memory was 159.9MB in the beginning and 148.4MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Referee took 175.84ms. Allocated memory is still 195.0MB. Free memory was 148.4MB in the beginning and 138.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-09-20 13:29:47,587 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/referee/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE