./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 185346c539430585f07637e43725e730308f06de .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 18:25:03,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:25:03,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:25:03,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:25:03,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:25:03,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:25:03,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:25:03,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:25:03,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:25:03,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:25:03,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:25:03,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:25:03,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:25:03,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:25:03,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:25:03,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:25:03,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:25:03,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:25:03,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:25:03,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:25:03,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:25:03,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:25:03,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:25:03,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:25:03,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:25:03,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:25:03,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:25:03,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:25:03,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:25:03,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:25:03,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:25:03,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:25:03,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:25:03,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:25:03,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:25:03,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:25:03,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:25:03,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:25:03,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:25:03,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:25:03,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:25:03,522 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:25:03,540 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:25:03,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:25:03,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:25:03,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:25:03,543 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:25:03,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:25:03,544 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:25:03,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:25:03,545 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:25:03,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:25:03,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:25:03,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:25:03,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:25:03,547 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:25:03,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:25:03,548 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:25:03,548 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:25:03,548 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:25:03,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:25:03,549 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:25:03,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:25:03,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:25:03,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:25:03,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:25:03,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:25:03,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:25:03,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:25:03,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:25:03,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:25:03,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 185346c539430585f07637e43725e730308f06de [2019-11-28 18:25:03,847 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:25:03,870 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:25:03,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:25:03,875 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:25:03,878 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:25:03,879 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i [2019-11-28 18:25:03,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5af3ff7/8842f9a089e6487ea5f76693f8684e57/FLAG19dda469d [2019-11-28 18:25:04,518 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:25:04,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe001_tso.oepc.i [2019-11-28 18:25:04,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5af3ff7/8842f9a089e6487ea5f76693f8684e57/FLAG19dda469d [2019-11-28 18:25:04,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5af3ff7/8842f9a089e6487ea5f76693f8684e57 [2019-11-28 18:25:04,787 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:25:04,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:25:04,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:25:04,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:25:04,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:25:04,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:25:04" (1/1) ... [2019-11-28 18:25:04,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@91324ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:04, skipping insertion in model container [2019-11-28 18:25:04,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:25:04" (1/1) ... [2019-11-28 18:25:04,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:25:04,861 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:25:05,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:25:05,368 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:25:05,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:25:05,504 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:25:05,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:05 WrapperNode [2019-11-28 18:25:05,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:25:05,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:25:05,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:25:05,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:25:05,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:05" (1/1) ... [2019-11-28 18:25:05,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:05" (1/1) ... [2019-11-28 18:25:05,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:25:05,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:25:05,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:25:05,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:25:05,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:05" (1/1) ... [2019-11-28 18:25:05,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:05" (1/1) ... [2019-11-28 18:25:05,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:05" (1/1) ... [2019-11-28 18:25:05,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:05" (1/1) ... [2019-11-28 18:25:05,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:05" (1/1) ... [2019-11-28 18:25:05,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:05" (1/1) ... [2019-11-28 18:25:05,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:05" (1/1) ... [2019-11-28 18:25:05,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:25:05,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:25:05,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:25:05,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:25:05,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:25:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:25:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:25:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:25:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:25:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:25:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:25:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:25:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:25:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:25:05,672 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:25:05,672 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:25:05,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:25:05,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:25:05,674 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 18:25:06,018 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:25:06,019 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:25:06,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:25:06 BoogieIcfgContainer [2019-11-28 18:25:06,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:25:06,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:25:06,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:25:06,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:25:06,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:25:04" (1/3) ... [2019-11-28 18:25:06,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382b7087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:25:06, skipping insertion in model container [2019-11-28 18:25:06,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:25:05" (2/3) ... [2019-11-28 18:25:06,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@382b7087 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:25:06, skipping insertion in model container [2019-11-28 18:25:06,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:25:06" (3/3) ... [2019-11-28 18:25:06,030 INFO L109 eAbstractionObserver]: Analyzing ICFG safe001_tso.oepc.i [2019-11-28 18:25:06,038 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:25:06,039 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:25:06,045 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:25:06,047 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:25:06,078 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,078 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,079 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,079 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,080 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,080 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,081 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,081 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,082 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,082 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,082 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,083 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,083 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,083 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,084 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,084 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,085 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,085 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:25:06,116 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:25:06,133 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:25:06,133 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:25:06,134 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:25:06,134 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:25:06,134 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:25:06,134 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:25:06,134 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:25:06,135 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:25:06,153 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-11-28 18:25:06,155 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-11-28 18:25:06,196 INFO L134 PetriNetUnfolder]: 1/50 cut-off events. [2019-11-28 18:25:06,196 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:25:06,204 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:25:06,210 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-11-28 18:25:06,227 INFO L134 PetriNetUnfolder]: 1/50 cut-off events. [2019-11-28 18:25:06,227 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:25:06,229 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:25:06,231 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:25:06,233 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:25:07,588 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-11-28 18:25:07,659 INFO L206 etLargeBlockEncoding]: Checked pairs total: 501 [2019-11-28 18:25:07,659 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-11-28 18:25:07,663 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-11-28 18:25:07,677 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-11-28 18:25:07,679 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-11-28 18:25:07,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:25:07,687 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:07,688 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:07,689 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:07,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:07,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1273726136, now seen corresponding path program 1 times [2019-11-28 18:25:07,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:07,706 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032656239] [2019-11-28 18:25:07,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:07,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:07,995 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032656239] [2019-11-28 18:25:07,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:07,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-28 18:25:07,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393752966] [2019-11-28 18:25:08,007 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:25:08,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:08,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:25:08,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:25:08,027 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 4 states. [2019-11-28 18:25:08,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:08,109 INFO L93 Difference]: Finished difference Result 58 states and 113 transitions. [2019-11-28 18:25:08,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:25:08,111 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-28 18:25:08,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:08,144 INFO L225 Difference]: With dead ends: 58 [2019-11-28 18:25:08,148 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 18:25:08,150 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:25:08,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 18:25:08,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-28 18:25:08,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 18:25:08,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 68 transitions. [2019-11-28 18:25:08,206 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 68 transitions. Word has length 8 [2019-11-28 18:25:08,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:08,207 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 68 transitions. [2019-11-28 18:25:08,208 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:25:08,209 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 68 transitions. [2019-11-28 18:25:08,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:25:08,212 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:08,212 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:08,213 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:08,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:08,214 INFO L82 PathProgramCache]: Analyzing trace with hash 724458, now seen corresponding path program 1 times [2019-11-28 18:25:08,214 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:08,215 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484409306] [2019-11-28 18:25:08,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:08,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:08,400 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484409306] [2019-11-28 18:25:08,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:08,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:25:08,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233587277] [2019-11-28 18:25:08,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:25:08,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:08,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:25:08,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:25:08,405 INFO L87 Difference]: Start difference. First operand 36 states and 68 transitions. Second operand 5 states. [2019-11-28 18:25:08,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:08,468 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-11-28 18:25:08,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:25:08,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 18:25:08,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:08,470 INFO L225 Difference]: With dead ends: 37 [2019-11-28 18:25:08,470 INFO L226 Difference]: Without dead ends: 30 [2019-11-28 18:25:08,471 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-28 18:25:08,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-28 18:25:08,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-28 18:25:08,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-28 18:25:08,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 50 transitions. [2019-11-28 18:25:08,477 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 50 transitions. Word has length 9 [2019-11-28 18:25:08,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:08,478 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 50 transitions. [2019-11-28 18:25:08,478 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:25:08,478 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 50 transitions. [2019-11-28 18:25:08,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:25:08,479 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:08,479 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:08,479 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:08,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:08,480 INFO L82 PathProgramCache]: Analyzing trace with hash 17019253, now seen corresponding path program 1 times [2019-11-28 18:25:08,480 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:08,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157261519] [2019-11-28 18:25:08,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:08,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:08,554 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157261519] [2019-11-28 18:25:08,554 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:08,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:25:08,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834623705] [2019-11-28 18:25:08,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:25:08,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:08,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:25:08,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:25:08,557 INFO L87 Difference]: Start difference. First operand 30 states and 50 transitions. Second operand 3 states. [2019-11-28 18:25:08,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:08,568 INFO L93 Difference]: Finished difference Result 29 states and 48 transitions. [2019-11-28 18:25:08,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:25:08,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 18:25:08,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:08,571 INFO L225 Difference]: With dead ends: 29 [2019-11-28 18:25:08,572 INFO L226 Difference]: Without dead ends: 29 [2019-11-28 18:25:08,572 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:25:08,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-11-28 18:25:08,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-11-28 18:25:08,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-11-28 18:25:08,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 48 transitions. [2019-11-28 18:25:08,579 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 48 transitions. Word has length 10 [2019-11-28 18:25:08,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:08,580 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 48 transitions. [2019-11-28 18:25:08,580 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:25:08,580 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 48 transitions. [2019-11-28 18:25:08,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:25:08,585 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:08,585 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:08,585 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:08,586 INFO L82 PathProgramCache]: Analyzing trace with hash 22499836, now seen corresponding path program 1 times [2019-11-28 18:25:08,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:08,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845079407] [2019-11-28 18:25:08,587 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:08,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:08,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:08,695 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845079407] [2019-11-28 18:25:08,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:08,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:25:08,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385004538] [2019-11-28 18:25:08,696 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:25:08,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:08,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:25:08,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:25:08,698 INFO L87 Difference]: Start difference. First operand 29 states and 48 transitions. Second operand 4 states. [2019-11-28 18:25:08,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:08,725 INFO L93 Difference]: Finished difference Result 39 states and 56 transitions. [2019-11-28 18:25:08,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:25:08,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 18:25:08,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:08,727 INFO L225 Difference]: With dead ends: 39 [2019-11-28 18:25:08,727 INFO L226 Difference]: Without dead ends: 26 [2019-11-28 18:25:08,728 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:25:08,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-11-28 18:25:08,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-11-28 18:25:08,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-11-28 18:25:08,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-11-28 18:25:08,732 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 10 [2019-11-28 18:25:08,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:08,733 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-11-28 18:25:08,733 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:25:08,733 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-11-28 18:25:08,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:25:08,733 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:08,734 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:08,734 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:08,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:08,734 INFO L82 PathProgramCache]: Analyzing trace with hash -183428321, now seen corresponding path program 1 times [2019-11-28 18:25:08,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:08,735 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795210590] [2019-11-28 18:25:08,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:08,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:08,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:08,779 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795210590] [2019-11-28 18:25:08,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:08,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:25:08,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317109220] [2019-11-28 18:25:08,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:25:08,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:08,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:25:08,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:25:08,781 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 3 states. [2019-11-28 18:25:08,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:08,792 INFO L93 Difference]: Finished difference Result 24 states and 32 transitions. [2019-11-28 18:25:08,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:25:08,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-11-28 18:25:08,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:08,793 INFO L225 Difference]: With dead ends: 24 [2019-11-28 18:25:08,793 INFO L226 Difference]: Without dead ends: 19 [2019-11-28 18:25:08,794 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:25:08,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-28 18:25:08,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-11-28 18:25:08,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-11-28 18:25:08,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-11-28 18:25:08,797 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 10 [2019-11-28 18:25:08,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:08,798 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-11-28 18:25:08,798 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:25:08,798 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-11-28 18:25:08,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:25:08,798 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:25:08,799 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:25:08,799 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:25:08,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:25:08,799 INFO L82 PathProgramCache]: Analyzing trace with hash 527638481, now seen corresponding path program 1 times [2019-11-28 18:25:08,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:25:08,800 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442484018] [2019-11-28 18:25:08,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:25:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:25:08,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:25:08,874 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442484018] [2019-11-28 18:25:08,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:25:08,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:25:08,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790755353] [2019-11-28 18:25:08,875 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:25:08,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:25:08,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:25:08,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:25:08,876 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 5 states. [2019-11-28 18:25:08,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:25:08,894 INFO L93 Difference]: Finished difference Result 18 states and 24 transitions. [2019-11-28 18:25:08,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:25:08,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 18:25:08,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:25:08,896 INFO L225 Difference]: With dead ends: 18 [2019-11-28 18:25:08,896 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:25:08,897 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:25:08,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:25:08,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:25:08,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:25:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:25:08,898 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-28 18:25:08,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:25:08,898 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:25:08,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:25:08,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:25:08,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:25:08,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:25:08 BasicIcfg [2019-11-28 18:25:08,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:25:08,906 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:25:08,906 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:25:08,906 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:25:08,907 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:25:06" (3/4) ... [2019-11-28 18:25:08,910 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:25:08,917 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:25:08,917 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:25:08,918 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:25:08,922 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:25:08,922 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:25:08,923 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:25:08,969 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:25:08,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:25:08,971 INFO L168 Benchmark]: Toolchain (without parser) took 4182.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 953.7 MB in the beginning and 828.4 MB in the end (delta: 125.3 MB). Peak memory consumption was 273.6 MB. Max. memory is 11.5 GB. [2019-11-28 18:25:08,972 INFO L168 Benchmark]: CDTParser took 0.97 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:25:08,973 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -157.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2019-11-28 18:25:08,973 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:25:08,975 INFO L168 Benchmark]: Boogie Preprocessor took 29.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:25:08,976 INFO L168 Benchmark]: RCFGBuilder took 412.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2019-11-28 18:25:08,976 INFO L168 Benchmark]: TraceAbstraction took 2883.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 828.4 MB in the end (delta: 252.8 MB). Peak memory consumption was 252.8 MB. Max. memory is 11.5 GB. [2019-11-28 18:25:08,977 INFO L168 Benchmark]: Witness Printer took 63.06 ms. Allocated memory is still 1.2 GB. Free memory is still 828.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:25:08,980 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 716.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -157.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 70.78 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 412.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2883.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 828.4 MB in the end (delta: 252.8 MB). Peak memory consumption was 252.8 MB. Max. memory is 11.5 GB. * Witness Printer took 63.06 ms. Allocated memory is still 1.2 GB. Free memory is still 828.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 253 VarBasedMoverChecksPositive, 15 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 16 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 501 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 47 SDslu, 42 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 1984 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...