This is Ultimate 0.2.4-dev-1d5fa63-m
[2024-09-13 10:07:13,072 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-13 10:07:13,139 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf
[2024-09-13 10:07:13,144 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-13 10:07:13,144 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-13 10:07:13,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-13 10:07:13,179 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-13 10:07:13,179 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-13 10:07:13,180 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-13 10:07:13,182 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-13 10:07:13,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-13 10:07:13,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-13 10:07:13,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-13 10:07:13,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-13 10:07:13,184 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-13 10:07:13,184 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-13 10:07:13,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-13 10:07:13,184 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-13 10:07:13,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-13 10:07:13,185 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-13 10:07:13,186 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-13 10:07:13,186 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-13 10:07:13,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-13 10:07:13,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-13 10:07:13,187 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-13 10:07:13,187 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-13 10:07:13,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-13 10:07:13,188 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-13 10:07:13,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-13 10:07:13,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-13 10:07:13,188 INFO L153 SettingsManager]: * Future-live optimization=false
[2024-09-13 10:07:13,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-13 10:07:13,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-13 10:07:13,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-13 10:07:13,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-13 10:07:13,190 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-13 10:07:13,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-13 10:07:13,190 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-13 10:07:13,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-13 10:07:13,191 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-13 10:07:13,191 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-13 10:07:13,191 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-13 10:07:13,191 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-13 10:07:13,192 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None
[2024-09-13 10:07:13,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-13 10:07:13,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-13 10:07:13,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-13 10:07:13,402 INFO L270 PluginConnector]: Initializing Witness Parser...
[2024-09-13 10:07:13,404 INFO L274 PluginConnector]: Witness Parser initialized
[2024-09-13 10:07:13,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/underapprox_1-2.yml/witness-2.1.yml
[2024-09-13 10:07:13,466 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-13 10:07:13,467 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-13 10:07:13,467 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/underapprox_1-2.c
[2024-09-13 10:07:14,686 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-13 10:07:14,838 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-13 10:07:14,839 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/underapprox_1-2.c
[2024-09-13 10:07:14,845 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/d659ea2c2/c03f55b26e5e47fb82b540493644b471/FLAGaed32e25c
[2024-09-13 10:07:15,244 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/d659ea2c2/c03f55b26e5e47fb82b540493644b471
[2024-09-13 10:07:15,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-13 10:07:15,245 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements.
[2024-09-13 10:07:15,246 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-13 10:07:15,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-13 10:07:15,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-13 10:07:15,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:13" (1/2) ...
[2024-09-13 10:07:15,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570bcc25 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:15, skipping insertion in model container
[2024-09-13 10:07:15,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:13" (1/2) ...
[2024-09-13 10:07:15,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4ce7e844 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 13.09 10:07:15, skipping insertion in model container
[2024-09-13 10:07:15,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:15" (2/2) ...
[2024-09-13 10:07:15,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@570bcc25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15, skipping insertion in model container
[2024-09-13 10:07:15,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.09 10:07:15" (2/2) ...
[2024-09-13 10:07:15,261 INFO L93 nessWitnessExtractor]: Found the following entries in the witness:
[2024-09-13 10:07:15,261 INFO L1541 ArrayList]: Loop invariant at [L16-L19] ((((((((((((long long) y * 2) + 1) <= (((89478484 + ((long long) y * 178956971)) / 268435456) * 3)) && (y <= 4)) && (x == 2)) || (((((long long) y + 1) <= (3 * ((((long long) 715827883 * y) + 715827872) / 2147483648))) && (y <= 32)) && (5 == x))) || (((((y / 2) <= 32) && ((y % 2) == 0)) && (x == 6)) && (((y / 2) + 1) <= (3 * ((715827872 + ((long long) 715827883 * (y / 2))) / 2147483648))))) || (((x == 3) && (((long long) y + 1) <= (3 * ((((long long) y * 178956971) + 178956968) / 536870912)))) && (y <= 8))) || ((x == 0) && (y == 1))) || (((y <= 2) && (((long long) y + 1) <= (((((long long) 44739243 * y) + 44739242) / 134217728) * 3))) && (x == 1))) || (((y <= 16) && ((((long long) y * 2) + 1) <= (((((long long) 715827883 * y) + 357913936) / 1073741824) * 3))) && (x == 4)))
[2024-09-13 10:07:15,262 INFO L1541 ArrayList]: Function contract at [L5]: requires (1 <= \old(cond)), ensures (1 <= \old(cond))
[2024-09-13 10:07:15,278 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-13 10:07:15,394 WARN L247 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-acceleration/underapprox_1-2.c[327,340]
[2024-09-13 10:07:15,407 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-13 10:07:15,415 INFO L200 MainTranslator]: Completed pre-run
Start Parsing Global
Start Parsing Global
[2024-09-13 10:07:15,454 WARN L247 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-acceleration/underapprox_1-2.c[327,340]
Start Parsing Local
[2024-09-13 10:07:15,472 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-13 10:07:15,484 INFO L204 MainTranslator]: Completed translation
[2024-09-13 10:07:15,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15 WrapperNode
[2024-09-13 10:07:15,485 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-13 10:07:15,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-13 10:07:15,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-13 10:07:15,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-13 10:07:15,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15" (1/1) ...
[2024-09-13 10:07:15,498 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15" (1/1) ...
[2024-09-13 10:07:15,503 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15" (1/1) ...
[2024-09-13 10:07:15,513 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
[2024-09-13 10:07:15,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15" (1/1) ...
[2024-09-13 10:07:15,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15" (1/1) ...
[2024-09-13 10:07:15,518 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15" (1/1) ...
[2024-09-13 10:07:15,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15" (1/1) ...
[2024-09-13 10:07:15,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15" (1/1) ...
[2024-09-13 10:07:15,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15" (1/1) ...
[2024-09-13 10:07:15,528 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-13 10:07:15,529 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-13 10:07:15,529 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-13 10:07:15,529 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-13 10:07:15,530 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15" (1/1) ...
[2024-09-13 10:07:15,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-13 10:07:15,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3
[2024-09-13 10:07:15,555 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)
[2024-09-13 10:07:15,557 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
[2024-09-13 10:07:15,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-13 10:07:15,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-13 10:07:15,591 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2024-09-13 10:07:15,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-13 10:07:15,591 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2024-09-13 10:07:15,591 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2024-09-13 10:07:15,591 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2024-09-13 10:07:15,591 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2024-09-13 10:07:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-13 10:07:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-13 10:07:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2024-09-13 10:07:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-13 10:07:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2024-09-13 10:07:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-13 10:07:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2024-09-13 10:07:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2024-09-13 10:07:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2024-09-13 10:07:15,680 INFO L242 CfgBuilder]: Building ICFG
[2024-09-13 10:07:15,682 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-13 10:07:15,849 WARN L783 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2024-09-13 10:07:15,858 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-13 10:07:15,874 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-13 10:07:15,874 INFO L318 CfgBuilder]: Removed 1 assume(true) statements.
[2024-09-13 10:07:15,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:15 BoogieIcfgContainer
[2024-09-13 10:07:15,875 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-13 10:07:15,876 INFO L112 PluginConnector]: ------------------------Referee----------------------------
[2024-09-13 10:07:15,876 INFO L270 PluginConnector]: Initializing Referee...
[2024-09-13 10:07:15,876 INFO L274 PluginConnector]: Referee initialized
[2024-09-13 10:07:15,877 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 13.09 10:07:13" (1/4) ...
[2024-09-13 10:07:15,877 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@324ea532 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 13.09 10:07:15, skipping insertion in model container
[2024-09-13 10:07:15,877 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 13.09 10:07:15" (2/4) ...
[2024-09-13 10:07:15,877 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@324ea532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:15, skipping insertion in model container
[2024-09-13 10:07:15,877 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.09 10:07:15" (3/4) ...
[2024-09-13 10:07:15,878 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@324ea532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 13.09 10:07:15, skipping insertion in model container
[2024-09-13 10:07:15,878 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.09 10:07:15" (4/4) ...
[2024-09-13 10:07:15,879 INFO L79 RefereeObserver]: Analyzing ICFG underapprox_1-2.c
[2024-09-13 10:07:15,882 INFO L112 InvariantChecker]: Found 1 loops.
[2024-09-13 10:07:15,883 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges.
[2024-09-13 10:07:15,883 INFO L367 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges.
[2024-09-13 10:07:15,883 INFO L367 InvariantChecker]: Will check inductivity from LOOP_HEAD L16-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges.
[2024-09-13 10:07:15,884 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges.
[2024-09-13 10:07:15,884 INFO L367 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges.
[2024-09-13 10:07:15,884 INFO L130 InvariantChecker]: Will check 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from loop head to error location, 1 loop-free subgraphs from procedure entry to loop head, 2 loop-free subgraphs from procedure entry to error location
[2024-09-13 10:07:15,932 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 4 edges
[2024-09-13 10:07:15,933 INFO L264 BlockEncoder]: Using Maximize final states
[2024-09-13 10:07:15,933 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true
[2024-09-13 10:07:15,934 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI
[2024-09-13 10:07:15,937 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true
[2024-09-13 10:07:15,939 INFO L71 MaximizeFinalStates]: 0 new accepting states
[2024-09-13 10:07:15,972 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding
[2024-09-13 10:07:15,973 INFO L71 MaximizeFinalStates]: 0 new accepting states
[2024-09-13 10:07:15,974 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding
[2024-09-13 10:07:15,974 INFO L238 BlockEncoder]: Using Create parallel compositions if possible
[2024-09-13 10:07:15,974 INFO L68 ParallelComposer]: Creating parallel compositions
[2024-09-13 10:07:15,991 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges
[2024-09-13 10:07:16,018 INFO L514 InvariantChecker]: The annotation(s) from loop head L16-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive.
[2024-09-13 10:07:16,032 INFO L314 BlockEncoder]: Initial Icfg 3 locations, 2 edges
[2024-09-13 10:07:16,032 INFO L264 BlockEncoder]: Using Maximize final states
[2024-09-13 10:07:16,032 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true
[2024-09-13 10:07:16,033 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI
[2024-09-13 10:07:16,033 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true
[2024-09-13 10:07:16,033 INFO L71 MaximizeFinalStates]: 0 new accepting states
[2024-09-13 10:07:16,039 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding
[2024-09-13 10:07:16,039 INFO L71 MaximizeFinalStates]: 0 new accepting states
[2024-09-13 10:07:16,039 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding
[2024-09-13 10:07:16,039 INFO L238 BlockEncoder]: Using Create parallel compositions if possible
[2024-09-13 10:07:16,040 INFO L68 ParallelComposer]: Creating parallel compositions
[2024-09-13 10:07:16,040 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges
[2024-09-13 10:07:16,054 INFO L514 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive.
[2024-09-13 10:07:16,066 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges
[2024-09-13 10:07:16,066 INFO L264 BlockEncoder]: Using Maximize final states
[2024-09-13 10:07:16,066 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true
[2024-09-13 10:07:16,066 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI
[2024-09-13 10:07:16,066 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true
[2024-09-13 10:07:16,066 INFO L71 MaximizeFinalStates]: 0 new accepting states
[2024-09-13 10:07:16,080 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding
[2024-09-13 10:07:16,080 INFO L71 MaximizeFinalStates]: 0 new accepting states
[2024-09-13 10:07:16,080 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding
[2024-09-13 10:07:16,080 INFO L238 BlockEncoder]: Using Create parallel compositions if possible
[2024-09-13 10:07:16,080 INFO L68 ParallelComposer]: Creating parallel compositions
[2024-09-13 10:07:16,081 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges
[2024-09-13 10:07:16,268 INFO L514 InvariantChecker]: The annotation(s) from loop head L16-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive.
[2024-09-13 10:07:16,280 INFO L314 BlockEncoder]: Initial Icfg 5 locations, 5 edges
[2024-09-13 10:07:16,281 INFO L264 BlockEncoder]: Using Maximize final states
[2024-09-13 10:07:16,281 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true
[2024-09-13 10:07:16,281 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI
[2024-09-13 10:07:16,281 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true
[2024-09-13 10:07:16,281 INFO L71 MaximizeFinalStates]: 0 new accepting states
[2024-09-13 10:07:16,284 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding
[2024-09-13 10:07:16,284 INFO L71 MaximizeFinalStates]: 0 new accepting states
[2024-09-13 10:07:16,285 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding
[2024-09-13 10:07:16,285 INFO L238 BlockEncoder]: Using Create parallel compositions if possible
[2024-09-13 10:07:16,285 INFO L68 ParallelComposer]: Creating parallel compositions
[2024-09-13 10:07:16,286 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges
[2024-09-13 10:07:16,287 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive.
[2024-09-13 10:07:16,295 INFO L314 BlockEncoder]: Initial Icfg 4 locations, 3 edges
[2024-09-13 10:07:16,295 INFO L264 BlockEncoder]: Using Maximize final states
[2024-09-13 10:07:16,295 INFO L271 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true
[2024-09-13 10:07:16,295 INFO L277 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI
[2024-09-13 10:07:16,295 INFO L172 BlockEncoder]: Using Apply optimizations until nothing changes=true
[2024-09-13 10:07:16,296 INFO L71 MaximizeFinalStates]: 0 new accepting states
[2024-09-13 10:07:16,297 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding
[2024-09-13 10:07:16,298 INFO L71 MaximizeFinalStates]: 0 new accepting states
[2024-09-13 10:07:16,298 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding
[2024-09-13 10:07:16,298 INFO L238 BlockEncoder]: Using Create parallel compositions if possible
[2024-09-13 10:07:16,298 INFO L68 ParallelComposer]: Creating parallel compositions
[2024-09-13 10:07:16,299 INFO L314 BlockEncoder]: Encoded RCFG 2 locations, 1 edges
[2024-09-13 10:07:16,300 INFO L514 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive.
[2024-09-13 10:07:16,303 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness.
[2024-09-13 10:07:16,303 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@324ea532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 13.09 10:07:16, skipping insertion in model container
[2024-09-13 10:07:16,303 INFO L131 PluginConnector]: ------------------------ END Referee----------------------------
[2024-09-13 10:07:16,305 INFO L158 Benchmark]: Toolchain (without parser) took 1058.87ms. Allocated memory is still 192.9MB. Free memory was 122.5MB in the beginning and 122.1MB in the end (delta: 441.5kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 10:07:16,306 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 10:07:16,306 INFO L158 Benchmark]: CDTParser took 0.07ms. Allocated memory is still 192.9MB. Free memory is still 168.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-13 10:07:16,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.06ms. Allocated memory is still 192.9MB. Free memory was 122.3MB in the beginning and 108.8MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2024-09-13 10:07:16,307 INFO L158 Benchmark]: Boogie Preprocessor took 41.86ms. Allocated memory is still 192.9MB. Free memory was 108.8MB in the beginning and 106.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-13 10:07:16,308 INFO L158 Benchmark]: RCFGBuilder took 346.50ms. Allocated memory is still 192.9MB. Free memory was 106.7MB in the beginning and 152.0MB in the end (delta: -45.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-09-13 10:07:16,308 INFO L158 Benchmark]: Referee took 427.93ms. Allocated memory is still 192.9MB. Free memory was 152.0MB in the beginning and 122.1MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
[2024-09-13 10:07:16,312 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.referee:
- AnnotationCheckResult: Annotation is a valid proof of correctness.
Annotation is a valid proof of correctness.
Annotation is valid for all loop-free paths from loop head at line 16 to check that procedure precondition always holds at line 16.
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 16.
Annotation is valid for all loop-free paths from loop head at line 16 to loop head at line 16.
Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to check that a call to reach_error is unreachable at line 7.
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* Witness Parser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB.
* CDTParser took 0.07ms. Allocated memory is still 192.9MB. Free memory is still 168.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 239.06ms. Allocated memory is still 192.9MB. Free memory was 122.3MB in the beginning and 108.8MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 41.86ms. Allocated memory is still 192.9MB. Free memory was 108.8MB in the beginning and 106.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 346.50ms. Allocated memory is still 192.9MB. Free memory was 106.7MB in the beginning and 152.0MB in the end (delta: -45.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Referee took 427.93ms. Allocated memory is still 192.9MB. Free memory was 152.0MB in the beginning and 122.1MB in the end (delta: 29.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB.
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2024-09-13 10:07:16,335 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...