This is Ultimate 0.2.5-wip.dk.contract-modifies-e378df2-m [2024-10-15 15:30:26,916 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-15 15:30:27,000 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/referee/config/svcomp-Reach-32bit-Referee_Default.epf [2024-10-15 15:30:27,010 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-15 15:30:27,011 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-15 15:30:27,044 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-15 15:30:27,045 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-15 15:30:27,046 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-15 15:30:27,046 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-15 15:30:27,046 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-15 15:30:27,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-15 15:30:27,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-15 15:30:27,047 INFO L153 SettingsManager]: * Use SBE=true [2024-10-15 15:30:27,047 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-15 15:30:27,048 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-15 15:30:27,048 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-15 15:30:27,048 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-15 15:30:27,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-15 15:30:27,049 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-15 15:30:27,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-15 15:30:27,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-15 15:30:27,052 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-15 15:30:27,052 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-15 15:30:27,052 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-15 15:30:27,053 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-15 15:30:27,053 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-15 15:30:27,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-15 15:30:27,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-15 15:30:27,054 INFO L153 SettingsManager]: * Future-live optimization=false [2024-10-15 15:30:27,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-15 15:30:27,054 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-15 15:30:27,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER [2024-10-15 15:30:27,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-15 15:30:27,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-15 15:30:27,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-15 15:30:27,409 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-15 15:30:27,410 INFO L274 PluginConnector]: CDTParser initialized [2024-10-15 15:30:27,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../sv-benchmarks/c/loop-acceleration/multivar_1-1.c [2024-10-15 15:30:28,983 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-15 15:30:29,181 INFO L384 CDTParser]: Found 1 translation units. [2024-10-15 15:30:29,182 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-acceleration/multivar_1-1.c [2024-10-15 15:30:29,193 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/referee/data/3e7fda24e/0346a2b3ac2b4028bbc5d03196ab1c70/FLAG817cf948d [2024-10-15 15:30:29,563 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/referee/data/3e7fda24e/0346a2b3ac2b4028bbc5d03196ab1c70 [2024-10-15 15:30:29,568 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-10-15 15:30:29,569 INFO L274 PluginConnector]: Witness Parser initialized [2024-10-15 15:30:29,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/referee/../results/automizer-verification-files/SV-COMP24_unreach-call/multivar_1-1.yml/witness-2.1.yml [2024-10-15 15:30:29,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-15 15:30:29,628 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-15 15:30:29,630 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-15 15:30:29,630 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-15 15:30:29,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-15 15:30:29,636 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:30:29" (1/2) ... [2024-10-15 15:30:29,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149da0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:29, skipping insertion in model container [2024-10-15 15:30:29,639 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:30:29" (1/2) ... [2024-10-15 15:30:29,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2eddb4c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:30:29, skipping insertion in model container [2024-10-15 15:30:29,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:30:29" (2/2) ... [2024-10-15 15:30:29,641 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149da0a0 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29, skipping insertion in model container [2024-10-15 15:30:29,641 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:30:29" (2/2) ... [2024-10-15 15:30:29,650 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-10-15 15:30:29,652 INFO L1541 ArrayList]: Loop invariant at [L17-L20] (y == x) [2024-10-15 15:30:29,655 INFO L1541 ArrayList]: Function contract at [L6]: requires (cond != 0), ensures (cond != 0) [2024-10-15 15:30:29,673 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-15 15:30:29,860 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-acceleration/multivar_1-1.c[374,387] [2024-10-15 15:30:29,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:30:29,885 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-10-15 15:30:29,927 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-acceleration/multivar_1-1.c[374,387] Start Parsing Local [2024-10-15 15:30:29,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-15 15:30:29,948 INFO L204 MainTranslator]: Completed translation [2024-10-15 15:30:29,949 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29 WrapperNode [2024-10-15 15:30:29,949 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-15 15:30:29,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-15 15:30:29,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-15 15:30:29,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-15 15:30:29,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (1/1) ... [2024-10-15 15:30:29,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (1/1) ... [2024-10-15 15:30:29,971 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-10-15 15:30:29,971 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-15 15:30:29,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-15 15:30:29,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-15 15:30:29,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-15 15:30:29,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (1/1) ... [2024-10-15 15:30:29,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (1/1) ... [2024-10-15 15:30:29,984 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (1/1) ... [2024-10-15 15:30:29,993 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 [2024-10-15 15:30:29,994 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (1/1) ... [2024-10-15 15:30:29,994 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (1/1) ... [2024-10-15 15:30:30,000 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (1/1) ... [2024-10-15 15:30:30,004 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (1/1) ... [2024-10-15 15:30:30,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (1/1) ... [2024-10-15 15:30:30,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (1/1) ... [2024-10-15 15:30:30,007 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-15 15:30:30,008 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-15 15:30:30,008 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-15 15:30:30,008 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-15 15:30:30,009 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (1/1) ... [2024-10-15 15:30:30,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-15 15:30:30,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/referee/z3 [2024-10-15 15:30:30,039 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) [2024-10-15 15:30:30,045 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 [2024-10-15 15:30:30,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-15 15:30:30,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-10-15 15:30:30,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-10-15 15:30:30,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-15 15:30:30,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-15 15:30:30,092 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-10-15 15:30:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-10-15 15:30:30,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-15 15:30:30,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-15 15:30:30,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-15 15:30:30,166 INFO L238 CfgBuilder]: Building ICFG [2024-10-15 15:30:30,168 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-15 15:30:30,281 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-15 15:30:30,298 INFO L287 CfgBuilder]: Performing block encoding [2024-10-15 15:30:30,336 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-15 15:30:30,336 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-15 15:30:30,337 INFO L201 PluginConnector]: Adding new model witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:30 BoogieIcfgContainer [2024-10-15 15:30:30,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-15 15:30:30,337 INFO L112 PluginConnector]: ------------------------Referee---------------------------- [2024-10-15 15:30:30,337 INFO L270 PluginConnector]: Initializing Referee... [2024-10-15 15:30:30,338 INFO L274 PluginConnector]: Referee initialized [2024-10-15 15:30:30,338 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "CDTParser AST 15.10 03:30:29" (1/4) ... [2024-10-15 15:30:30,343 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@38d57df3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.referee AST 15.10 03:30:30, skipping insertion in model container [2024-10-15 15:30:30,345 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 15.10 03:30:29" (2/4) ... [2024-10-15 15:30:30,346 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@38d57df3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:30:30, skipping insertion in model container [2024-10-15 15:30:30,346 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 15.10 03:30:29" (3/4) ... [2024-10-15 15:30:30,346 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@38d57df3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CORRECTNESS_WITNESS 15.10 03:30:30, skipping insertion in model container [2024-10-15 15:30:30,346 INFO L184 PluginConnector]: Executing the observer RefereeObserver from plugin Referee for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:30:30" (4/4) ... [2024-10-15 15:30:30,348 INFO L79 RefereeObserver]: Analyzing ICFG multivar_1-1.c [2024-10-15 15:30:30,352 INFO L113 InvariantChecker]: Found 1 loops. [2024-10-15 15:30:30,355 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L17-3 to ERROR_LOC mainErr1REQUIRES_VIOLATIONPRE_CONDITION. Corresponding subgraph has 4 edges. [2024-10-15 15:30:30,355 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION. Corresponding subgraph has 5 edges. [2024-10-15 15:30:30,355 INFO L373 InvariantChecker]: Will check inductivity from ENTRY $Ultimate##0 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 2 edges. [2024-10-15 15:30:30,355 INFO L373 InvariantChecker]: Will check inductivity from LOOP_HEAD L17-3 to LOOP_INVARIANT_ERROR_LOC mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT. Corresponding subgraph has 3 edges. [2024-10-15 15:30:30,356 INFO L373 InvariantChecker]: Will check inductivity from ENTRY __VERIFIER_assertENTRY to ERROR_LOC __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION. Corresponding subgraph has 3 edges. [2024-10-15 15:30:30,356 INFO L131 InvariantChecker]: Will check 2 loop-free subgraphs from procedure entry to error location, 1 loop-free subgraphs from loop head to loop head, 1 loop-free subgraphs from procedure entry to loop head, 1 loop-free subgraphs from loop head to error location [2024-10-15 15:30:30,397 INFO L309 BlockEncoder]: Initial Icfg 4 locations, 4 edges [2024-10-15 15:30:30,398 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:30,398 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:30,399 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:30,400 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:30,402 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:30,419 INFO L101 BaseMinimizeStates]: Removed 6 edges and 2 locations by large block encoding [2024-10-15 15:30:30,422 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:30,422 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:30,422 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:30,423 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:30,431 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:30,451 INFO L520 InvariantChecker]: The annotation(s) from loop head L17-3 to error location mainErr1REQUIRES_VIOLATIONPRE_CONDITION is inductive. [2024-10-15 15:30:30,462 INFO L309 BlockEncoder]: Initial Icfg 5 locations, 5 edges [2024-10-15 15:30:30,462 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:30,463 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:30,463 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:30,463 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:30,463 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:30,467 INFO L101 BaseMinimizeStates]: Removed 8 edges and 3 locations by large block encoding [2024-10-15 15:30:30,467 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:30,467 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:30,468 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:30,468 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:30,469 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:30,476 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr1ENSURES_VIOLATIONPOST_CONDITION is inductive. [2024-10-15 15:30:30,488 INFO L309 BlockEncoder]: Initial Icfg 3 locations, 2 edges [2024-10-15 15:30:30,488 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:30,488 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:30,488 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:30,488 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:30,488 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:30,493 INFO L101 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2024-10-15 15:30:30,494 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:30,494 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:30,495 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:30,495 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:30,495 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:30,497 INFO L520 InvariantChecker]: The annotation(s) from entry $Ultimate##0 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-10-15 15:30:30,504 INFO L309 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-10-15 15:30:30,504 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:30,505 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:30,505 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:30,505 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:30,505 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:30,510 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-10-15 15:30:30,510 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:30,511 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:30,511 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:30,511 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:30,511 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:30,515 INFO L520 InvariantChecker]: The annotation(s) from loop head L17-3 to loop head mainErr0ASSERT_VIOLATIONWITNESS_INVARIANT is inductive. [2024-10-15 15:30:30,530 INFO L309 BlockEncoder]: Initial Icfg 4 locations, 3 edges [2024-10-15 15:30:30,530 INFO L259 BlockEncoder]: Using Maximize final states [2024-10-15 15:30:30,530 INFO L266 BlockEncoder]: Using Minimize states even if more edges are added than removed.=true [2024-10-15 15:30:30,530 INFO L272 BlockEncoder]: Using Minimize states using LBE with the strategy=MULTI [2024-10-15 15:30:30,530 INFO L167 BlockEncoder]: Using Apply optimizations until nothing changes=true [2024-10-15 15:30:30,531 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:30,532 INFO L101 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2024-10-15 15:30:30,532 INFO L71 MaximizeFinalStates]: 0 new accepting states [2024-10-15 15:30:30,532 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2024-10-15 15:30:30,533 INFO L233 BlockEncoder]: Using Create parallel compositions if possible [2024-10-15 15:30:30,533 INFO L68 ParallelComposer]: Creating parallel compositions [2024-10-15 15:30:30,533 INFO L309 BlockEncoder]: Encoded RCFG 2 locations, 1 edges [2024-10-15 15:30:30,535 INFO L520 InvariantChecker]: The annotation(s) from entry __VERIFIER_assertENTRY to error location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION is inductive. [2024-10-15 15:30:30,539 INFO L58 RefereeStarter]: Annotation is a valid proof of correctness. [2024-10-15 15:30:30,540 INFO L204 PluginConnector]: Invalid model from Referee for observer de.uni_freiburg.informatik.ultimate.plugins.generator.referee.RefereeObserver@38d57df3 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.referee CFG 15.10 03:30:30, skipping insertion in model container [2024-10-15 15:30:30,540 INFO L131 PluginConnector]: ------------------------ END Referee---------------------------- [2024-10-15 15:30:30,542 INFO L158 Benchmark]: Toolchain (without parser) took 912.72ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 30.9MB in the beginning and 57.2MB in the end (delta: -26.3MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-10-15 15:30:30,543 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory was 38.4MB in the beginning and 38.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:30:30,543 INFO L158 Benchmark]: Witness Parser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 32.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:30:30,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.62ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 30.7MB in the beginning and 54.2MB in the end (delta: -23.5MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-10-15 15:30:30,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.70ms. Allocated memory is still 79.7MB. Free memory was 54.2MB in the beginning and 53.5MB in the end (delta: 766.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-15 15:30:30,549 INFO L158 Benchmark]: Boogie Preprocessor took 34.50ms. Allocated memory is still 79.7MB. Free memory was 53.5MB in the beginning and 51.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-15 15:30:30,549 INFO L158 Benchmark]: RCFGBuilder took 328.76ms. Allocated memory is still 79.7MB. Free memory was 51.8MB in the beginning and 41.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-15 15:30:30,550 INFO L158 Benchmark]: Referee took 203.00ms. Allocated memory is still 79.7MB. Free memory was 41.3MB in the beginning and 57.2MB in the end (delta: -15.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-15 15:30:30,556 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 entry of procedure main to loop head at line 17. Annotation is valid for all loop-free paths from entry of procedure __VERIFIER_assert to exit of procedure __VERIFIER_assert. Annotation is valid for all loop-free paths from loop head at line 17 to loop head at line 17. 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 8. Annotation is valid for all loop-free paths from loop head at line 17 to check that procedure precondition always holds at line 17. * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 60.8MB. Free memory was 38.4MB in the beginning and 38.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.16ms. Allocated memory is still 60.8MB. Free memory is still 32.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.62ms. Allocated memory was 60.8MB in the beginning and 79.7MB in the end (delta: 18.9MB). Free memory was 30.7MB in the beginning and 54.2MB in the end (delta: -23.5MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.70ms. Allocated memory is still 79.7MB. Free memory was 54.2MB in the beginning and 53.5MB in the end (delta: 766.8kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.50ms. Allocated memory is still 79.7MB. Free memory was 53.5MB in the beginning and 51.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.76ms. Allocated memory is still 79.7MB. Free memory was 51.8MB in the beginning and 41.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Referee took 203.00ms. Allocated memory is still 79.7MB. Free memory was 41.3MB in the beginning and 57.2MB in the end (delta: -15.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-10-15 15:30:30,586 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...