./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2034d68815c5d20d7bc6440e24d5c8889799d0be ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 05:32:28,874 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:32:28,875 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:32:28,882 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:32:28,882 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:32:28,883 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:32:28,883 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:32:28,884 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:32:28,885 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:32:28,885 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:32:28,886 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:32:28,886 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:32:28,887 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:32:28,887 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:32:28,888 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:32:28,889 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:32:28,889 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:32:28,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:32:28,891 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:32:28,892 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:32:28,893 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:32:28,894 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:32:28,895 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:32:28,895 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:32:28,895 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:32:28,896 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:32:28,896 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:32:28,897 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:32:28,897 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:32:28,898 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:32:28,898 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:32:28,899 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:32:28,899 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:32:28,899 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:32:28,900 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:32:28,900 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:32:28,900 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 05:32:28,908 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:32:28,909 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:32:28,909 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:32:28,909 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:32:28,909 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 05:32:28,910 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 05:32:28,910 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 05:32:28,910 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 05:32:28,910 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 05:32:28,910 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 05:32:28,910 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 05:32:28,910 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 05:32:28,911 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 05:32:28,911 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:32:28,911 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:32:28,911 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 05:32:28,911 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:32:28,912 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:32:28,912 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:32:28,912 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:32:28,912 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:32:28,912 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:32:28,912 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:32:28,912 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:32:28,913 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:32:28,913 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:32:28,913 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:32:28,913 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:32:28,913 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:32:28,913 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:32:28,913 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:32:28,914 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:32:28,914 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:32:28,914 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 05:32:28,914 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:32:28,914 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 05:32:28,914 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 05:32:28,914 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan 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 -> Taipan 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 -> 2034d68815c5d20d7bc6440e24d5c8889799d0be [2018-11-23 05:32:28,938 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:32:28,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:32:28,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:32:28,951 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:32:28,951 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:32:28,952 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_true-unreach-call.i [2018-11-23 05:32:28,993 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan/data/49f01087f/4ee3188a6a774f72917d80532ae206a7/FLAGaf23f943c [2018-11-23 05:32:29,441 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:32:29,441 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc_true-unreach-call.i [2018-11-23 05:32:29,453 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan/data/49f01087f/4ee3188a6a774f72917d80532ae206a7/FLAGaf23f943c [2018-11-23 05:32:29,462 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan/data/49f01087f/4ee3188a6a774f72917d80532ae206a7 [2018-11-23 05:32:29,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:32:29,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:32:29,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:32:29,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:32:29,468 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:32:29,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:29" (1/1) ... [2018-11-23 05:32:29,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f540941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29, skipping insertion in model container [2018-11-23 05:32:29,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:29" (1/1) ... [2018-11-23 05:32:29,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:32:29,505 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:32:29,718 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:32:29,726 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:32:29,803 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:32:29,849 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:32:29,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29 WrapperNode [2018-11-23 05:32:29,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:32:29,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:32:29,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:32:29,850 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:32:29,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29" (1/1) ... [2018-11-23 05:32:29,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29" (1/1) ... [2018-11-23 05:32:29,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:32:29,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:32:29,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:32:29,886 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:32:29,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29" (1/1) ... [2018-11-23 05:32:29,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29" (1/1) ... [2018-11-23 05:32:29,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29" (1/1) ... [2018-11-23 05:32:29,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29" (1/1) ... [2018-11-23 05:32:29,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29" (1/1) ... [2018-11-23 05:32:29,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29" (1/1) ... [2018-11-23 05:32:29,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29" (1/1) ... [2018-11-23 05:32:29,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:32:29,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:32:29,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:32:29,905 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:32:29,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan/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 [2018-11-23 05:32:29,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 05:32:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 05:32:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-23 05:32:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 05:32:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-23 05:32:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-23 05:32:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-23 05:32:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-23 05:32:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-23 05:32:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-23 05:32:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-23 05:32:29,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:32:29,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:32:29,946 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 05:32:30,157 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:32:30,158 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 05:32:30,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:32:30 BoogieIcfgContainer [2018-11-23 05:32:30,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:32:30,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:32:30,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:32:30,161 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:32:30,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:32:29" (1/3) ... [2018-11-23 05:32:30,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d614b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:32:30, skipping insertion in model container [2018-11-23 05:32:30,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:29" (2/3) ... [2018-11-23 05:32:30,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d614b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:32:30, skipping insertion in model container [2018-11-23 05:32:30,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:32:30" (3/3) ... [2018-11-23 05:32:30,164 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc_true-unreach-call.i [2018-11-23 05:32:30,188 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,189 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,189 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,189 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,189 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,189 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,189 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,189 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,190 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,190 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,190 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,190 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,190 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,190 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,191 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,191 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,191 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,191 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,191 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,191 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,192 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,192 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,192 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,193 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,193 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,193 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 05:32:30,203 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 05:32:30,204 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:32:30,209 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 05:32:30,221 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 05:32:30,241 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:32:30,241 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:32:30,241 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:32:30,241 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:32:30,241 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:32:30,241 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:32:30,241 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:32:30,242 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:32:30,249 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2018-11-23 05:32:30,331 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2018-11-23 05:32:30,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2018-11-23 05:32:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 05:32:30,346 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:32:30,347 INFO L402 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] [2018-11-23 05:32:30,349 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:32:30,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:32:30,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1493068601, now seen corresponding path program 1 times [2018-11-23 05:32:30,356 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:32:30,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:32:30,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:32:30,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:32:30,400 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:32:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:32:30,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:32:30,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:32:30,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 05:32:30,559 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:32:30,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 05:32:30,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 05:32:30,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 05:32:30,572 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2018-11-23 05:32:30,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:32:30,639 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2018-11-23 05:32:30,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 05:32:30,641 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-23 05:32:30,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:32:30,659 INFO L225 Difference]: With dead ends: 2493 [2018-11-23 05:32:30,659 INFO L226 Difference]: Without dead ends: 1128 [2018-11-23 05:32:30,660 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:32:30,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2018-11-23 05:32:30,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2018-11-23 05:32:30,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2018-11-23 05:32:30,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2018-11-23 05:32:30,734 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2018-11-23 05:32:30,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:32:30,734 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2018-11-23 05:32:30,734 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 05:32:30,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2018-11-23 05:32:30,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 05:32:30,737 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:32:30,737 INFO L402 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] [2018-11-23 05:32:30,737 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:32:30,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:32:30,738 INFO L82 PathProgramCache]: Analyzing trace with hash 257798501, now seen corresponding path program 1 times [2018-11-23 05:32:30,738 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:32:30,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:32:30,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:32:30,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:32:30,743 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:32:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:32:30,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:32:30,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:32:30,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 05:32:30,811 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:32:30,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 05:32:30,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 05:32:30,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:32:30,812 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2018-11-23 05:32:30,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:32:30,880 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2018-11-23 05:32:30,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 05:32:30,881 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-23 05:32:30,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:32:30,886 INFO L225 Difference]: With dead ends: 1168 [2018-11-23 05:32:30,886 INFO L226 Difference]: Without dead ends: 1044 [2018-11-23 05:32:30,887 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-23 05:32:30,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-11-23 05:32:30,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2018-11-23 05:32:30,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2018-11-23 05:32:30,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2018-11-23 05:32:30,908 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2018-11-23 05:32:30,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:32:30,908 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2018-11-23 05:32:30,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 05:32:30,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2018-11-23 05:32:30,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 05:32:30,910 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:32:30,910 INFO L402 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] [2018-11-23 05:32:30,910 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:32:30,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:32:30,911 INFO L82 PathProgramCache]: Analyzing trace with hash 490078413, now seen corresponding path program 1 times [2018-11-23 05:32:30,911 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:32:30,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:32:30,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:32:30,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:32:30,915 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:32:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:32:30,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:32:30,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:32:30,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 05:32:30,993 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:32:30,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 05:32:30,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 05:32:30,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 05:32:30,994 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2018-11-23 05:32:31,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:32:31,053 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2018-11-23 05:32:31,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 05:32:31,054 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-23 05:32:31,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:32:31,056 INFO L225 Difference]: With dead ends: 820 [2018-11-23 05:32:31,056 INFO L226 Difference]: Without dead ends: 708 [2018-11-23 05:32:31,057 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-23 05:32:31,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-11-23 05:32:31,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-11-23 05:32:31,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-23 05:32:31,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2018-11-23 05:32:31,070 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2018-11-23 05:32:31,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:32:31,071 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2018-11-23 05:32:31,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 05:32:31,071 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2018-11-23 05:32:31,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 05:32:31,072 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:32:31,072 INFO L402 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] [2018-11-23 05:32:31,073 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:32:31,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:32:31,073 INFO L82 PathProgramCache]: Analyzing trace with hash -774622655, now seen corresponding path program 1 times [2018-11-23 05:32:31,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:32:31,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:32:31,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:32:31,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:32:31,076 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:32:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:32:31,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:32:31,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:32:31,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 05:32:31,160 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:32:31,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 05:32:31,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 05:32:31,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 05:32:31,161 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 7 states. [2018-11-23 05:32:31,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:32:31,276 INFO L93 Difference]: Finished difference Result 1108 states and 3291 transitions. [2018-11-23 05:32:31,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 05:32:31,277 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-23 05:32:31,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:32:31,280 INFO L225 Difference]: With dead ends: 1108 [2018-11-23 05:32:31,280 INFO L226 Difference]: Without dead ends: 592 [2018-11-23 05:32:31,280 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-23 05:32:31,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2018-11-23 05:32:31,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2018-11-23 05:32:31,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2018-11-23 05:32:31,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1755 transitions. [2018-11-23 05:32:31,296 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1755 transitions. Word has length 33 [2018-11-23 05:32:31,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:32:31,296 INFO L480 AbstractCegarLoop]: Abstraction has 592 states and 1755 transitions. [2018-11-23 05:32:31,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 05:32:31,296 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1755 transitions. [2018-11-23 05:32:31,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 05:32:31,298 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:32:31,298 INFO L402 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] [2018-11-23 05:32:31,298 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:32:31,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:32:31,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1731473919, now seen corresponding path program 2 times [2018-11-23 05:32:31,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:32:31,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:32:31,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:32:31,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:32:31,301 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:32:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:32:31,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:32:31,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:32:31,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 05:32:31,381 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:32:31,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 05:32:31,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 05:32:31,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 05:32:31,382 INFO L87 Difference]: Start difference. First operand 592 states and 1755 transitions. Second operand 7 states. [2018-11-23 05:32:31,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:32:31,454 INFO L93 Difference]: Finished difference Result 976 states and 2939 transitions. [2018-11-23 05:32:31,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 05:32:31,455 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-23 05:32:31,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:32:31,457 INFO L225 Difference]: With dead ends: 976 [2018-11-23 05:32:31,457 INFO L226 Difference]: Without dead ends: 556 [2018-11-23 05:32:31,457 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-23 05:32:31,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2018-11-23 05:32:31,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2018-11-23 05:32:31,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-11-23 05:32:31,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2018-11-23 05:32:31,468 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2018-11-23 05:32:31,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:32:31,468 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2018-11-23 05:32:31,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 05:32:31,468 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2018-11-23 05:32:31,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 05:32:31,470 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:32:31,470 INFO L402 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] [2018-11-23 05:32:31,470 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:32:31,470 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:32:31,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1959007825, now seen corresponding path program 3 times [2018-11-23 05:32:31,471 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 05:32:31,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:32:31,473 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 05:32:31,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 05:32:31,473 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 05:32:31,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:32:31,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:32:31,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:32:31,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 05:32:31,550 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 05:32:31,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 05:32:31,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 05:32:31,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 05:32:31,551 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 8 states. [2018-11-23 05:32:31,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:32:31,719 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2018-11-23 05:32:31,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 05:32:31,719 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2018-11-23 05:32:31,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:32:31,720 INFO L225 Difference]: With dead ends: 428 [2018-11-23 05:32:31,720 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 05:32:31,720 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-23 05:32:31,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 05:32:31,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 05:32:31,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 05:32:31,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 05:32:31,720 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-23 05:32:31,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:32:31,721 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 05:32:31,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 05:32:31,721 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 05:32:31,721 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 05:32:31,723 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 05:32:31,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:32:31 BasicIcfg [2018-11-23 05:32:31,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:32:31,725 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:32:31,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:32:31,725 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:32:31,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:32:30" (3/4) ... [2018-11-23 05:32:31,728 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 05:32:31,732 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-23 05:32:31,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-23 05:32:31,733 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-23 05:32:31,736 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 05:32:31,736 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 05:32:31,766 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3fa98428-fc00-434a-8124-24ea9fad60ea/bin-2019/utaipan/witness.graphml [2018-11-23 05:32:31,766 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:32:31,767 INFO L168 Benchmark]: Toolchain (without parser) took 2302.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 957.0 MB in the beginning and 1.1 GB in the end (delta: -121.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:32:31,767 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:32:31,768 INFO L168 Benchmark]: CACSL2BoogieTranslator took 383.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 957.0 MB in the beginning and 1.1 GB in the end (delta: -142.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2018-11-23 05:32:31,768 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.42 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. [2018-11-23 05:32:31,768 INFO L168 Benchmark]: Boogie Preprocessor took 19.32 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:32:31,769 INFO L168 Benchmark]: RCFGBuilder took 253.21 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2018-11-23 05:32:31,769 INFO L168 Benchmark]: TraceAbstraction took 1565.96 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: -10.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:32:31,769 INFO L168 Benchmark]: Witness Printer took 41.11 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: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. [2018-11-23 05:32:31,771 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 383.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 957.0 MB in the beginning and 1.1 GB in the end (delta: -142.0 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.42 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 19.32 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 253.21 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: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1565.96 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: -10.6 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 41.11 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: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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 7 procedures, 71 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 333 SDtfs, 472 SDslu, 879 SDs, 0 SdLazy, 117 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 15582 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...