./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-divine/condvar.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar.i -s /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer --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 608daa6125fca7edb704aa4fad695d54b285441b ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 04:39:30,476 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 04:39:30,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 04:39:30,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 04:39:30,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 04:39:30,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 04:39:30,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 04:39:30,510 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 04:39:30,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 04:39:30,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 04:39:30,522 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 04:39:30,523 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 04:39:30,524 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 04:39:30,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 04:39:30,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 04:39:30,529 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 04:39:30,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 04:39:30,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 04:39:30,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 04:39:30,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 04:39:30,544 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 04:39:30,546 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 04:39:30,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 04:39:30,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 04:39:30,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 04:39:30,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 04:39:30,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 04:39:30,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 04:39:30,557 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 04:39:30,558 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 04:39:30,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 04:39:30,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 04:39:30,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 04:39:30,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 04:39:30,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 04:39:30,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 04:39:30,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 04:39:30,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 04:39:30,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 04:39:30,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 04:39:30,567 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 04:39:30,568 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 04:39:30,597 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 04:39:30,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 04:39:30,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 04:39:30,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 04:39:30,600 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 04:39:30,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 04:39:30,601 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 04:39:30,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 04:39:30,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 04:39:30,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 04:39:30,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 04:39:30,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 04:39:30,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 04:39:30,604 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 04:39:30,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 04:39:30,605 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 04:39:30,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 04:39:30,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 04:39:30,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 04:39:30,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 04:39:30,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 04:39:30,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 04:39:30,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 04:39:30,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 04:39:30,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 04:39:30,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 04:39:30,608 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 04:39:30,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 04:39:30,609 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer 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 -> 608daa6125fca7edb704aa4fad695d54b285441b [2019-11-20 04:39:30,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 04:39:30,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 04:39:30,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 04:39:30,810 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 04:39:30,814 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 04:39:30,815 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/../../sv-benchmarks/c/pthread-divine/condvar.i [2019-11-20 04:39:30,892 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/data/b35164aef/66690d53a44a426c8708208597f15421/FLAGa07e4a315 [2019-11-20 04:39:31,398 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 04:39:31,399 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/sv-benchmarks/c/pthread-divine/condvar.i [2019-11-20 04:39:31,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/data/b35164aef/66690d53a44a426c8708208597f15421/FLAGa07e4a315 [2019-11-20 04:39:31,693 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/data/b35164aef/66690d53a44a426c8708208597f15421 [2019-11-20 04:39:31,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 04:39:31,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 04:39:31,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 04:39:31,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 04:39:31,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 04:39:31,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:39:31" (1/1) ... [2019-11-20 04:39:31,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ca877b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:31, skipping insertion in model container [2019-11-20 04:39:31,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:39:31" (1/1) ... [2019-11-20 04:39:31,716 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 04:39:31,783 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 04:39:32,142 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2019-11-20 04:39:32,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:39:32,400 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 04:39:32,416 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2019-11-20 04:39:32,446 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 04:39:32,541 INFO L192 MainTranslator]: Completed translation [2019-11-20 04:39:32,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:32 WrapperNode [2019-11-20 04:39:32,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 04:39:32,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 04:39:32,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 04:39:32,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 04:39:32,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:32" (1/1) ... [2019-11-20 04:39:32,575 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:32" (1/1) ... [2019-11-20 04:39:32,597 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 04:39:32,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 04:39:32,598 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 04:39:32,598 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 04:39:32,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:32" (1/1) ... [2019-11-20 04:39:32,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:32" (1/1) ... [2019-11-20 04:39:32,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:32" (1/1) ... [2019-11-20 04:39:32,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:32" (1/1) ... [2019-11-20 04:39:32,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:32" (1/1) ... [2019-11-20 04:39:32,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:32" (1/1) ... [2019-11-20 04:39:32,625 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:32" (1/1) ... [2019-11-20 04:39:32,629 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 04:39:32,630 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 04:39:32,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 04:39:32,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 04:39:32,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/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 [2019-11-20 04:39:32,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 04:39:32,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 04:39:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-20 04:39:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 04:39:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 04:39:32,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 04:39:32,714 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2019-11-20 04:39:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2019-11-20 04:39:32,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 04:39:32,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 04:39:32,716 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 04:39:33,093 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 04:39:33,094 INFO L285 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-20 04:39:33,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:39:33 BoogieIcfgContainer [2019-11-20 04:39:33,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 04:39:33,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 04:39:33,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 04:39:33,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 04:39:33,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:39:31" (1/3) ... [2019-11-20 04:39:33,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31fb39f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:39:33, skipping insertion in model container [2019-11-20 04:39:33,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:39:32" (2/3) ... [2019-11-20 04:39:33,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31fb39f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:39:33, skipping insertion in model container [2019-11-20 04:39:33,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:39:33" (3/3) ... [2019-11-20 04:39:33,104 INFO L109 eAbstractionObserver]: Analyzing ICFG condvar.i [2019-11-20 04:39:33,145 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,146 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,146 WARN L315 ript$VariableManager]: TermVariabe threadThread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,146 WARN L315 ript$VariableManager]: TermVariabe threadThread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,147 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,147 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,148 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,148 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,149 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,149 WARN L315 ript$VariableManager]: TermVariabe |threadThread2of3ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,150 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,150 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,150 WARN L315 ript$VariableManager]: TermVariabe threadThread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,151 WARN L315 ript$VariableManager]: TermVariabe threadThread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,151 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,151 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,152 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,153 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,153 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,153 WARN L315 ript$VariableManager]: TermVariabe |threadThread3of3ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,154 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,154 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,155 WARN L315 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,155 WARN L315 ript$VariableManager]: TermVariabe threadThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,155 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,156 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,156 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,157 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,157 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,157 WARN L315 ript$VariableManager]: TermVariabe |threadThread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 04:39:33,179 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 04:39:33,179 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 04:39:33,188 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-20 04:39:33,201 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-20 04:39:33,223 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 04:39:33,224 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 04:39:33,224 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 04:39:33,224 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 04:39:33,224 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 04:39:33,225 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 04:39:33,225 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 04:39:33,225 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 04:39:33,239 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 89 places, 94 transitions [2019-11-20 04:39:33,307 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 451 states. [2019-11-20 04:39:33,311 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states. [2019-11-20 04:39:33,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-11-20 04:39:33,328 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:39:33,330 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:39:33,330 INFO L410 AbstractCegarLoop]: === Iteration 1 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:39:33,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:39:33,338 INFO L82 PathProgramCache]: Analyzing trace with hash -77998325, now seen corresponding path program 1 times [2019-11-20 04:39:33,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:39:33,348 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298316144] [2019-11-20 04:39:33,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:39:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:39:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:39:33,692 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298316144] [2019-11-20 04:39:33,693 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:39:33,693 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 04:39:33,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228666375] [2019-11-20 04:39:33,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:39:33,700 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:39:33,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:39:33,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:39:33,720 INFO L87 Difference]: Start difference. First operand 451 states. Second operand 3 states. [2019-11-20 04:39:33,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:39:33,790 INFO L93 Difference]: Finished difference Result 283 states and 518 transitions. [2019-11-20 04:39:33,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:39:33,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2019-11-20 04:39:33,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:39:33,811 INFO L225 Difference]: With dead ends: 283 [2019-11-20 04:39:33,811 INFO L226 Difference]: Without dead ends: 253 [2019-11-20 04:39:33,813 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:39:33,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-11-20 04:39:33,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2019-11-20 04:39:33,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2019-11-20 04:39:33,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 474 transitions. [2019-11-20 04:39:33,881 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 474 transitions. Word has length 31 [2019-11-20 04:39:33,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:39:33,882 INFO L462 AbstractCegarLoop]: Abstraction has 253 states and 474 transitions. [2019-11-20 04:39:33,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:39:33,882 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 474 transitions. [2019-11-20 04:39:33,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-20 04:39:33,886 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:39:33,886 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:39:33,887 INFO L410 AbstractCegarLoop]: === Iteration 2 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:39:33,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:39:33,887 INFO L82 PathProgramCache]: Analyzing trace with hash -732424103, now seen corresponding path program 1 times [2019-11-20 04:39:33,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:39:33,888 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021090712] [2019-11-20 04:39:33,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:39:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:39:33,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:39:33,949 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021090712] [2019-11-20 04:39:33,950 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 04:39:33,950 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 04:39:33,950 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628919800] [2019-11-20 04:39:33,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 04:39:33,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:39:33,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 04:39:33,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:39:33,953 INFO L87 Difference]: Start difference. First operand 253 states and 474 transitions. Second operand 3 states. [2019-11-20 04:39:33,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:39:33,999 INFO L93 Difference]: Finished difference Result 337 states and 642 transitions. [2019-11-20 04:39:34,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 04:39:34,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-11-20 04:39:34,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:39:34,011 INFO L225 Difference]: With dead ends: 337 [2019-11-20 04:39:34,011 INFO L226 Difference]: Without dead ends: 337 [2019-11-20 04:39:34,012 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 04:39:34,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2019-11-20 04:39:34,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 274. [2019-11-20 04:39:34,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2019-11-20 04:39:34,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 516 transitions. [2019-11-20 04:39:34,039 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 516 transitions. Word has length 35 [2019-11-20 04:39:34,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:39:34,039 INFO L462 AbstractCegarLoop]: Abstraction has 274 states and 516 transitions. [2019-11-20 04:39:34,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 04:39:34,040 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 516 transitions. [2019-11-20 04:39:34,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-20 04:39:34,044 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:39:34,044 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:39:34,044 INFO L410 AbstractCegarLoop]: === Iteration 3 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:39:34,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:39:34,045 INFO L82 PathProgramCache]: Analyzing trace with hash -943827889, now seen corresponding path program 1 times [2019-11-20 04:39:34,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:39:34,045 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175614815] [2019-11-20 04:39:34,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:39:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:39:34,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:39:34,193 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175614815] [2019-11-20 04:39:34,193 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875271084] [2019-11-20 04:39:34,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:39:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:39:34,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 04:39:34,323 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:39:34,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:39:34,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:39:34,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-11-20 04:39:34,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370610406] [2019-11-20 04:39:34,397 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:39:34,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:39:34,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:39:34,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-20 04:39:34,399 INFO L87 Difference]: Start difference. First operand 274 states and 516 transitions. Second operand 7 states. [2019-11-20 04:39:34,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:39:34,509 INFO L93 Difference]: Finished difference Result 442 states and 852 transitions. [2019-11-20 04:39:34,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 04:39:34,510 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-11-20 04:39:34,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:39:34,514 INFO L225 Difference]: With dead ends: 442 [2019-11-20 04:39:34,514 INFO L226 Difference]: Without dead ends: 442 [2019-11-20 04:39:34,514 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-11-20 04:39:34,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2019-11-20 04:39:34,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 379. [2019-11-20 04:39:34,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 379 states. [2019-11-20 04:39:34,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 726 transitions. [2019-11-20 04:39:34,558 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 726 transitions. Word has length 40 [2019-11-20 04:39:34,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:39:34,558 INFO L462 AbstractCegarLoop]: Abstraction has 379 states and 726 transitions. [2019-11-20 04:39:34,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:39:34,559 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 726 transitions. [2019-11-20 04:39:34,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-20 04:39:34,572 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:39:34,573 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:39:34,779 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:39:34,780 INFO L410 AbstractCegarLoop]: === Iteration 4 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:39:34,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:39:34,780 INFO L82 PathProgramCache]: Analyzing trace with hash 1439506969, now seen corresponding path program 2 times [2019-11-20 04:39:34,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:39:34,781 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012681440] [2019-11-20 04:39:34,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:39:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:39:34,892 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:39:34,892 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012681440] [2019-11-20 04:39:34,893 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425245760] [2019-11-20 04:39:34,893 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:39:35,010 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 04:39:35,010 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:39:35,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 04:39:35,023 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:39:35,068 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:39:35,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 04:39:35,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2019-11-20 04:39:35,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98586330] [2019-11-20 04:39:35,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 04:39:35,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:39:35,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 04:39:35,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-11-20 04:39:35,076 INFO L87 Difference]: Start difference. First operand 379 states and 726 transitions. Second operand 9 states. [2019-11-20 04:39:35,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:39:35,221 INFO L93 Difference]: Finished difference Result 547 states and 1062 transitions. [2019-11-20 04:39:35,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 04:39:35,221 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2019-11-20 04:39:35,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:39:35,226 INFO L225 Difference]: With dead ends: 547 [2019-11-20 04:39:35,227 INFO L226 Difference]: Without dead ends: 547 [2019-11-20 04:39:35,228 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2019-11-20 04:39:35,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2019-11-20 04:39:35,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 484. [2019-11-20 04:39:35,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2019-11-20 04:39:35,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 936 transitions. [2019-11-20 04:39:35,260 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 936 transitions. Word has length 45 [2019-11-20 04:39:35,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:39:35,263 INFO L462 AbstractCegarLoop]: Abstraction has 484 states and 936 transitions. [2019-11-20 04:39:35,263 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 04:39:35,263 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 936 transitions. [2019-11-20 04:39:35,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-11-20 04:39:35,271 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 04:39:35,272 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 04:39:35,476 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:39:35,477 INFO L410 AbstractCegarLoop]: === Iteration 5 === [threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 04:39:35,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 04:39:35,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1968610673, now seen corresponding path program 3 times [2019-11-20 04:39:35,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 04:39:35,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684708300] [2019-11-20 04:39:35,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 04:39:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 04:39:35,669 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 04:39:35,669 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684708300] [2019-11-20 04:39:35,670 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570252602] [2019-11-20 04:39:35,670 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:39:35,764 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-11-20 04:39:35,765 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 04:39:35,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 04:39:35,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 04:39:35,883 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-20 04:39:35,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 04:39:35,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2019-11-20 04:39:35,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696425853] [2019-11-20 04:39:35,887 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-20 04:39:35,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 04:39:35,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 04:39:35,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2019-11-20 04:39:35,889 INFO L87 Difference]: Start difference. First operand 484 states and 936 transitions. Second operand 7 states. [2019-11-20 04:39:36,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 04:39:36,064 INFO L93 Difference]: Finished difference Result 472 states and 918 transitions. [2019-11-20 04:39:36,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 04:39:36,065 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-11-20 04:39:36,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 04:39:36,066 INFO L225 Difference]: With dead ends: 472 [2019-11-20 04:39:36,066 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 04:39:36,066 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2019-11-20 04:39:36,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 04:39:36,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 04:39:36,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 04:39:36,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 04:39:36,067 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 50 [2019-11-20 04:39:36,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 04:39:36,068 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 04:39:36,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-20 04:39:36,068 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 04:39:36,068 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 04:39:36,278 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 04:39:36,281 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 04:39:36,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 04:39:36 BasicIcfg [2019-11-20 04:39:36,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 04:39:36,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 04:39:36,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 04:39:36,284 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 04:39:36,285 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:39:33" (3/4) ... [2019-11-20 04:39:36,288 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 04:39:36,296 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread [2019-11-20 04:39:36,301 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-11-20 04:39:36,303 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 04:39:36,303 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 04:39:36,364 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6c2afeb3-5450-4f48-9902-8e8bf25a4f83/bin/uautomizer/witness.graphml [2019-11-20 04:39:36,366 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 04:39:36,369 INFO L168 Benchmark]: Toolchain (without parser) took 4670.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 944.8 MB in the beginning and 885.2 MB in the end (delta: 59.6 MB). Peak memory consumption was 222.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:39:36,370 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 04:39:36,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 844.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-11-20 04:39:36,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.89 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. [2019-11-20 04:39:36,372 INFO L168 Benchmark]: Boogie Preprocessor took 31.82 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. [2019-11-20 04:39:36,377 INFO L168 Benchmark]: RCFGBuilder took 465.62 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-11-20 04:39:36,380 INFO L168 Benchmark]: TraceAbstraction took 3187.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.8 MB in the end (delta: 212.9 MB). Peak memory consumption was 212.9 MB. Max. memory is 11.5 GB. [2019-11-20 04:39:36,381 INFO L168 Benchmark]: Witness Printer took 82.69 ms. Allocated memory is still 1.2 GB. Free memory was 891.8 MB in the beginning and 885.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-20 04:39:36,383 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 844.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.89 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 31.82 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 465.62 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: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3187.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.8 MB in the end (delta: 212.9 MB). Peak memory consumption was 212.9 MB. Max. memory is 11.5 GB. * Witness Printer took 82.69 ms. Allocated memory is still 1.2 GB. Free memory was 891.8 MB in the beginning and 885.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 695]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 695]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 695]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 97 locations, 4 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 5, TraceHistogramMax: 3, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 519 SDtfs, 564 SDslu, 1387 SDs, 0 SdLazy, 119 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 179 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=484occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 189 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 336 NumberOfCodeBlocks, 331 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 21172 SizeOfPredicates, 12 NumberOfNonLiveVariables, 310 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 18/52 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...