./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe009_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/safe009_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 23582f55fd1c03a1b87f76e6ea5194f9f5f1b275 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 18:27:13,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:27:13,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:27:13,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:27:13,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:27:13,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:27:13,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:27:13,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:27:13,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:27:13,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:27:13,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:27:13,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:27:13,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:27:13,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:27:13,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:27:13,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:27:13,460 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:27:13,461 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:27:13,463 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:27:13,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:27:13,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:27:13,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:27:13,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:27:13,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:27:13,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:27:13,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:27:13,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:27:13,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:27:13,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:27:13,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:27:13,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:27:13,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:27:13,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:27:13,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:27:13,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:27:13,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:27:13,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:27:13,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:27:13,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:27:13,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:27:13,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:27:13,485 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:27:13,499 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:27:13,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:27:13,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:27:13,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:27:13,502 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:27:13,502 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:27:13,502 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:27:13,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:27:13,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:27:13,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:27:13,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:27:13,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:27:13,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:27:13,504 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:27:13,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:27:13,505 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:27:13,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:27:13,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:27:13,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:27:13,506 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:27:13,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:27:13,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:27:13,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:27:13,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:27:13,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:27:13,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:27:13,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:27:13,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:27:13,509 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:27:13,509 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 -> 23582f55fd1c03a1b87f76e6ea5194f9f5f1b275 [2019-11-28 18:27:13,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:27:13,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:27:13,833 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:27:13,835 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:27:13,837 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:27:13,838 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe009_tso.oepc.i [2019-11-28 18:27:13,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6956aa46/50a170a9fdbc457c8d3dfe3bf067886d/FLAG6a0ccddd1 [2019-11-28 18:27:14,519 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:27:14,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_tso.oepc.i [2019-11-28 18:27:14,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6956aa46/50a170a9fdbc457c8d3dfe3bf067886d/FLAG6a0ccddd1 [2019-11-28 18:27:14,759 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6956aa46/50a170a9fdbc457c8d3dfe3bf067886d [2019-11-28 18:27:14,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:27:14,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:27:14,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:27:14,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:27:14,769 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:27:14,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:27:14" (1/1) ... [2019-11-28 18:27:14,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bba22f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:14, skipping insertion in model container [2019-11-28 18:27:14,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:27:14" (1/1) ... [2019-11-28 18:27:14,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:27:14,827 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:27:15,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:27:15,283 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:27:15,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:27:15,459 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:27:15,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15 WrapperNode [2019-11-28 18:27:15,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:27:15,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:27:15,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:27:15,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:27:15,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15" (1/1) ... [2019-11-28 18:27:15,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15" (1/1) ... [2019-11-28 18:27:15,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:27:15,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:27:15,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:27:15,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:27:15,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15" (1/1) ... [2019-11-28 18:27:15,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15" (1/1) ... [2019-11-28 18:27:15,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15" (1/1) ... [2019-11-28 18:27:15,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15" (1/1) ... [2019-11-28 18:27:15,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15" (1/1) ... [2019-11-28 18:27:15,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15" (1/1) ... [2019-11-28 18:27:15,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15" (1/1) ... [2019-11-28 18:27:15,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:27:15,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:27:15,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:27:15,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:27:15,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15" (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 18:27:15,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:27:15,620 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:27:15,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:27:15,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:27:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:27:15,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:27:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:27:15,622 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:27:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:27:15,623 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:27:15,623 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:27:15,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:27:15,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:27:15,626 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 18:27:16,008 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:27:16,010 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:27:16,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:27:16 BoogieIcfgContainer [2019-11-28 18:27:16,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:27:16,014 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:27:16,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:27:16,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:27:16,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:27:14" (1/3) ... [2019-11-28 18:27:16,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cfde09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:27:16, skipping insertion in model container [2019-11-28 18:27:16,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:27:15" (2/3) ... [2019-11-28 18:27:16,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cfde09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:27:16, skipping insertion in model container [2019-11-28 18:27:16,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:27:16" (3/3) ... [2019-11-28 18:27:16,022 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_tso.oepc.i [2019-11-28 18:27:16,030 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:27:16,030 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:27:16,038 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:27:16,039 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:27:16,064 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,065 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,065 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,068 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,069 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,069 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,069 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,070 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,070 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,070 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,070 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,070 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,071 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,071 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,071 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,071 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,072 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,072 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:27:16,099 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:27:16,117 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:27:16,117 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:27:16,117 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:27:16,117 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:27:16,118 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:27:16,118 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:27:16,118 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:27:16,118 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:27:16,130 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-11-28 18:27:16,132 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-11-28 18:27:16,175 INFO L134 PetriNetUnfolder]: 1/50 cut-off events. [2019-11-28 18:27:16,175 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:27:16,187 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 25 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:27:16,191 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-11-28 18:27:16,208 INFO L134 PetriNetUnfolder]: 1/50 cut-off events. [2019-11-28 18:27:16,208 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:27:16,210 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 25 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:27:16,213 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:27:16,214 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:27:17,360 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-11-28 18:27:17,551 INFO L206 etLargeBlockEncoding]: Checked pairs total: 444 [2019-11-28 18:27:17,552 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-11-28 18:27:17,556 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-11-28 18:27:17,568 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-11-28 18:27:17,570 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-11-28 18:27:17,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:27:17,577 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:27:17,578 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:27:17,578 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:27:17,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:27:17,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1049428584, now seen corresponding path program 1 times [2019-11-28 18:27:17,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:27:17,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193639846] [2019-11-28 18:27:17,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:27:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:27:17,869 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 18:27:17,870 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193639846] [2019-11-28 18:27:17,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:27:17,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:27:17,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362975472] [2019-11-28 18:27:17,877 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:27:17,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:27:17,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:27:17,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:27:17,896 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-11-28 18:27:17,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:27:17,931 INFO L93 Difference]: Finished difference Result 61 states and 110 transitions. [2019-11-28 18:27:17,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:27:17,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 18:27:17,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:27:17,946 INFO L225 Difference]: With dead ends: 61 [2019-11-28 18:27:17,946 INFO L226 Difference]: Without dead ends: 45 [2019-11-28 18:27:17,948 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 18:27:17,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-11-28 18:27:17,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2019-11-28 18:27:17,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-11-28 18:27:17,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 75 transitions. [2019-11-28 18:27:17,992 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 75 transitions. Word has length 8 [2019-11-28 18:27:17,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:27:17,993 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 75 transitions. [2019-11-28 18:27:17,993 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:27:17,993 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 75 transitions. [2019-11-28 18:27:17,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:27:17,994 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:27:17,995 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:27:17,995 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:27:17,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:27:17,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1605762269, now seen corresponding path program 1 times [2019-11-28 18:27:17,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:27:17,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877003189] [2019-11-28 18:27:17,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:27:18,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:27:18,115 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 18:27:18,116 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877003189] [2019-11-28 18:27:18,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:27:18,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:27:18,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752781692] [2019-11-28 18:27:18,119 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:27:18,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:27:18,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:27:18,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:27:18,120 INFO L87 Difference]: Start difference. First operand 42 states and 75 transitions. Second operand 5 states. [2019-11-28 18:27:18,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:27:18,197 INFO L93 Difference]: Finished difference Result 46 states and 73 transitions. [2019-11-28 18:27:18,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:27:18,199 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 18:27:18,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:27:18,200 INFO L225 Difference]: With dead ends: 46 [2019-11-28 18:27:18,201 INFO L226 Difference]: Without dead ends: 36 [2019-11-28 18:27:18,203 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 18:27:18,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-28 18:27:18,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-28 18:27:18,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-28 18:27:18,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2019-11-28 18:27:18,214 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 9 [2019-11-28 18:27:18,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:27:18,215 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2019-11-28 18:27:18,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:27:18,215 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2019-11-28 18:27:18,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:27:18,219 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:27:18,219 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:27:18,219 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:27:18,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:27:18,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1761057975, now seen corresponding path program 1 times [2019-11-28 18:27:18,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:27:18,222 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411801379] [2019-11-28 18:27:18,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:27:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:27:18,378 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 18:27:18,378 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411801379] [2019-11-28 18:27:18,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:27:18,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 18:27:18,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584957431] [2019-11-28 18:27:18,379 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 18:27:18,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:27:18,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 18:27:18,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:27:18,380 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand 6 states. [2019-11-28 18:27:18,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:27:18,448 INFO L93 Difference]: Finished difference Result 34 states and 50 transitions. [2019-11-28 18:27:18,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-28 18:27:18,449 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-28 18:27:18,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:27:18,449 INFO L225 Difference]: With dead ends: 34 [2019-11-28 18:27:18,450 INFO L226 Difference]: Without dead ends: 27 [2019-11-28 18:27:18,450 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-28 18:27:18,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-11-28 18:27:18,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2019-11-28 18:27:18,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-11-28 18:27:18,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 35 transitions. [2019-11-28 18:27:18,454 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 35 transitions. Word has length 10 [2019-11-28 18:27:18,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:27:18,455 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 35 transitions. [2019-11-28 18:27:18,455 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 18:27:18,455 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 35 transitions. [2019-11-28 18:27:18,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:27:18,455 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:27:18,456 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:27:18,456 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:27:18,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:27:18,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1241637279, now seen corresponding path program 1 times [2019-11-28 18:27:18,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:27:18,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4933973] [2019-11-28 18:27:18,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:27:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:27:18,550 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 18:27:18,551 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4933973] [2019-11-28 18:27:18,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:27:18,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:27:18,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840205514] [2019-11-28 18:27:18,554 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:27:18,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:27:18,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:27:18,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:27:18,555 INFO L87 Difference]: Start difference. First operand 23 states and 35 transitions. Second operand 5 states. [2019-11-28 18:27:18,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:27:18,586 INFO L93 Difference]: Finished difference Result 28 states and 39 transitions. [2019-11-28 18:27:18,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:27:18,587 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 18:27:18,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:27:18,587 INFO L225 Difference]: With dead ends: 28 [2019-11-28 18:27:18,587 INFO L226 Difference]: Without dead ends: 18 [2019-11-28 18:27:18,588 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 18:27:18,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-28 18:27:18,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-28 18:27:18,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-28 18:27:18,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-28 18:27:18,591 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 11 [2019-11-28 18:27:18,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:27:18,591 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-28 18:27:18,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:27:18,592 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-11-28 18:27:18,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:27:18,592 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:27:18,593 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:27:18,593 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:27:18,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:27:18,593 INFO L82 PathProgramCache]: Analyzing trace with hash -379741151, now seen corresponding path program 2 times [2019-11-28 18:27:18,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:27:18,594 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719451734] [2019-11-28 18:27:18,594 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:27:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:27:18,702 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 18:27:18,703 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719451734] [2019-11-28 18:27:18,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:27:18,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:27:18,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548772576] [2019-11-28 18:27:18,707 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:27:18,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:27:18,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:27:18,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:27:18,708 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 4 states. [2019-11-28 18:27:18,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:27:18,732 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2019-11-28 18:27:18,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:27:18,733 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-28 18:27:18,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:27:18,734 INFO L225 Difference]: With dead ends: 21 [2019-11-28 18:27:18,734 INFO L226 Difference]: Without dead ends: 17 [2019-11-28 18:27:18,735 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 18:27:18,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-28 18:27:18,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-11-28 18:27:18,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-11-28 18:27:18,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-11-28 18:27:18,739 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-11-28 18:27:18,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:27:18,740 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-11-28 18:27:18,740 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:27:18,740 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-11-28 18:27:18,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-28 18:27:18,741 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:27:18,742 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:27:18,742 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:27:18,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:27:18,750 INFO L82 PathProgramCache]: Analyzing trace with hash -377953691, now seen corresponding path program 3 times [2019-11-28 18:27:18,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:27:18,751 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72749041] [2019-11-28 18:27:18,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:27:18,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:27:18,832 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 18:27:18,832 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72749041] [2019-11-28 18:27:18,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:27:18,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:27:18,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347113525] [2019-11-28 18:27:18,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:27:18,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:27:18,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:27:18,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:27:18,835 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states. [2019-11-28 18:27:18,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:27:18,850 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-11-28 18:27:18,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:27:18,851 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-11-28 18:27:18,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:27:18,851 INFO L225 Difference]: With dead ends: 16 [2019-11-28 18:27:18,851 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:27:18,852 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:27:18,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:27:18,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:27:18,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:27:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:27:18,853 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-28 18:27:18,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:27:18,853 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:27:18,854 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:27:18,854 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:27:18,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:27:18,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:27:18 BasicIcfg [2019-11-28 18:27:18,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:27:18,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:27:18,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:27:18,860 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:27:18,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:27:16" (3/4) ... [2019-11-28 18:27:18,865 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:27:18,872 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:27:18,873 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:27:18,873 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:27:18,879 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:27:18,879 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:27:18,879 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:27:18,937 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:27:18,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:27:18,939 INFO L168 Benchmark]: Toolchain (without parser) took 4175.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 960.4 MB in the beginning and 822.0 MB in the end (delta: 138.4 MB). Peak memory consumption was 281.0 MB. Max. memory is 11.5 GB. [2019-11-28 18:27:18,941 INFO L168 Benchmark]: CDTParser took 0.98 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:27:18,941 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 18:27:18,943 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.51 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 18:27:18,943 INFO L168 Benchmark]: Boogie Preprocessor took 27.27 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 18:27:18,946 INFO L168 Benchmark]: RCFGBuilder took 467.79 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-11-28 18:27:18,950 INFO L168 Benchmark]: TraceAbstraction took 2845.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 822.0 MB in the end (delta: 259.7 MB). Peak memory consumption was 259.7 MB. Max. memory is 11.5 GB. [2019-11-28 18:27:18,951 INFO L168 Benchmark]: Witness Printer took 78.14 ms. Allocated memory is still 1.2 GB. Free memory is still 822.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:27:18,955 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.98 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 695.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.51 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 27.27 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 467.79 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2845.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 822.0 MB in the end (delta: 259.7 MB). Peak memory consumption was 259.7 MB. Max. memory is 11.5 GB. * Witness Printer took 78.14 ms. Allocated memory is still 1.2 GB. Free memory is still 822.0 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: 1.4s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 219 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 444 CheckedPairsTotal, 45 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: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 56 SDtfs, 79 SDslu, 42 SDs, 0 SdLazy, 54 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 2568 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...