./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe023_tso.opt_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_714cccb8-162d-46ba-b195-fc468b121aa6/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe023_tso.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/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 b766bd0e1c3529740d24ff74c91e84954efb627d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 12:28:26,780 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:28:26,781 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:28:26,788 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:28:26,788 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:28:26,789 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:28:26,790 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:28:26,791 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:28:26,792 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:28:26,792 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:28:26,793 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:28:26,793 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:28:26,794 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:28:26,795 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:28:26,795 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:28:26,796 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:28:26,796 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:28:26,798 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:28:26,799 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:28:26,800 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:28:26,801 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:28:26,801 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:28:26,803 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:28:26,803 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:28:26,803 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:28:26,804 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:28:26,805 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:28:26,805 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:28:26,806 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:28:26,807 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:28:26,807 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:28:26,807 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:28:26,808 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:28:26,808 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:28:26,808 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:28:26,809 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:28:26,809 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 12:28:26,816 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:28:26,816 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:28:26,817 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:28:26,817 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 12:28:26,817 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 12:28:26,817 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 12:28:26,817 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 12:28:26,817 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 12:28:26,818 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 12:28:26,818 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 12:28:26,818 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 12:28:26,818 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 12:28:26,818 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 12:28:26,819 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:28:26,819 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 12:28:26,819 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:28:26,819 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 12:28:26,819 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:28:26,819 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:28:26,820 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:28:26,820 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:28:26,820 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 12:28:26,820 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:28:26,820 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:28:26,820 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:28:26,820 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:28:26,820 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 12:28:26,821 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:28:26,821 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 12:28:26,821 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 12:28:26,821 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:28:26,821 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:28:26,821 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:28:26,821 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 12:28:26,821 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:28:26,822 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:28:26,822 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 12:28:26,822 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_714cccb8-162d-46ba-b195-fc468b121aa6/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 -> b766bd0e1c3529740d24ff74c91e84954efb627d [2018-11-23 12:28:26,846 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:28:26,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:28:26,858 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:28:26,859 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:28:26,859 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:28:26,860 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe023_tso.opt_true-unreach-call.i [2018-11-23 12:28:26,899 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/bin-2019/utaipan/data/c5ad5e26e/9cc390281c8b4f99b874cc540597d6ee/FLAG8e4a0637a [2018-11-23 12:28:27,329 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:28:27,329 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/sv-benchmarks/c/pthread-wmm/safe023_tso.opt_true-unreach-call.i [2018-11-23 12:28:27,336 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/bin-2019/utaipan/data/c5ad5e26e/9cc390281c8b4f99b874cc540597d6ee/FLAG8e4a0637a [2018-11-23 12:28:27,345 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/bin-2019/utaipan/data/c5ad5e26e/9cc390281c8b4f99b874cc540597d6ee [2018-11-23 12:28:27,347 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:28:27,348 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:28:27,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:28:27,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:28:27,351 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:28:27,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:28:27" (1/1) ... [2018-11-23 12:28:27,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fa062a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27, skipping insertion in model container [2018-11-23 12:28:27,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:28:27" (1/1) ... [2018-11-23 12:28:27,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:28:27,386 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:28:27,596 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:28:27,606 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:28:27,684 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:28:27,734 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:28:27,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27 WrapperNode [2018-11-23 12:28:27,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:28:27,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:28:27,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:28:27,735 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:28:27,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27" (1/1) ... [2018-11-23 12:28:27,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27" (1/1) ... [2018-11-23 12:28:27,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:28:27,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:28:27,768 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:28:27,768 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:28:27,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27" (1/1) ... [2018-11-23 12:28:27,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27" (1/1) ... [2018-11-23 12:28:27,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27" (1/1) ... [2018-11-23 12:28:27,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27" (1/1) ... [2018-11-23 12:28:27,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27" (1/1) ... [2018-11-23 12:28:27,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27" (1/1) ... [2018-11-23 12:28:27,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27" (1/1) ... [2018-11-23 12:28:27,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:28:27,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:28:27,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:28:27,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:28:27,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/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 12:28:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 12:28:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 12:28:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-23 12:28:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 12:28:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-23 12:28:27,840 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-23 12:28:27,840 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-23 12:28:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-23 12:28:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-23 12:28:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-23 12:28:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-23 12:28:27,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:28:27,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:28:27,842 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 12:28:28,084 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:28:28,085 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 12:28:28,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:28:28 BoogieIcfgContainer [2018-11-23 12:28:28,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:28:28,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 12:28:28,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 12:28:28,088 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 12:28:28,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:28:27" (1/3) ... [2018-11-23 12:28:28,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5e2266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:28:28, skipping insertion in model container [2018-11-23 12:28:28,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:28:27" (2/3) ... [2018-11-23 12:28:28,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5e2266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:28:28, skipping insertion in model container [2018-11-23 12:28:28,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:28:28" (3/3) ... [2018-11-23 12:28:28,091 INFO L112 eAbstractionObserver]: Analyzing ICFG safe023_tso.opt_true-unreach-call.i [2018-11-23 12:28:28,118 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,119 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,119 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,119 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,119 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,119 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,119 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,120 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,120 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,120 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,120 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,120 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,120 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,120 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,121 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,121 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,121 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,121 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,121 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,121 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,122 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,122 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,122 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,122 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,122 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,122 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,122 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,123 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,123 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,123 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 12:28:28,138 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 12:28:28,138 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 12:28:28,145 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 12:28:28,159 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 12:28:28,180 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 12:28:28,180 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 12:28:28,180 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 12:28:28,180 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 12:28:28,180 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 12:28:28,180 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 12:28:28,180 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 12:28:28,181 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 12:28:28,188 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2018-11-23 12:28:28,268 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2018-11-23 12:28:28,270 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2018-11-23 12:28:28,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-23 12:28:28,281 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:28:28,282 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 12:28:28,283 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:28:28,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:28:28,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1527644630, now seen corresponding path program 1 times [2018-11-23 12:28:28,290 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:28:28,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:28:28,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:28:28,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:28:28,333 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:28:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:28:28,472 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 12:28:28,474 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:28:28,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 12:28:28,474 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:28:28,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 12:28:28,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 12:28:28,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 12:28:28,488 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2018-11-23 12:28:28,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:28:28,572 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2018-11-23 12:28:28,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 12:28:28,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-23 12:28:28,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:28:28,595 INFO L225 Difference]: With dead ends: 2493 [2018-11-23 12:28:28,595 INFO L226 Difference]: Without dead ends: 1128 [2018-11-23 12:28:28,596 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 12:28:28,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2018-11-23 12:28:28,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2018-11-23 12:28:28,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2018-11-23 12:28:28,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2018-11-23 12:28:28,679 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2018-11-23 12:28:28,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:28:28,679 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2018-11-23 12:28:28,679 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 12:28:28,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2018-11-23 12:28:28,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-23 12:28:28,682 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:28:28,682 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 12:28:28,682 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:28:28,682 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:28:28,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1534799274, now seen corresponding path program 1 times [2018-11-23 12:28:28,683 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:28:28,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:28:28,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:28:28,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:28:28,692 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:28:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:28:28,748 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 12:28:28,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:28:28,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 12:28:28,749 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:28:28,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 12:28:28,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 12:28:28,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 12:28:28,751 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2018-11-23 12:28:28,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:28:28,818 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2018-11-23 12:28:28,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 12:28:28,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-23 12:28:28,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:28:28,824 INFO L225 Difference]: With dead ends: 1168 [2018-11-23 12:28:28,824 INFO L226 Difference]: Without dead ends: 1044 [2018-11-23 12:28:28,825 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 12:28:28,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-11-23 12:28:28,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2018-11-23 12:28:28,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2018-11-23 12:28:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2018-11-23 12:28:28,853 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2018-11-23 12:28:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:28:28,854 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2018-11-23 12:28:28,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 12:28:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2018-11-23 12:28:28,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-23 12:28:28,856 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:28:28,856 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 12:28:28,856 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:28:28,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:28:28,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1935451892, now seen corresponding path program 1 times [2018-11-23 12:28:28,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:28:28,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:28:28,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:28:28,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:28:28,861 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:28:28,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:28:28,927 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 12:28:28,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:28:28,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 12:28:28,928 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:28:28,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 12:28:28,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 12:28:28,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-23 12:28:28,929 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2018-11-23 12:28:29,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:28:29,020 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2018-11-23 12:28:29,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 12:28:29,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-23 12:28:29,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:28:29,024 INFO L225 Difference]: With dead ends: 820 [2018-11-23 12:28:29,024 INFO L226 Difference]: Without dead ends: 708 [2018-11-23 12:28:29,025 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 12:28:29,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-11-23 12:28:29,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-11-23 12:28:29,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-23 12:28:29,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2018-11-23 12:28:29,044 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2018-11-23 12:28:29,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:28:29,044 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2018-11-23 12:28:29,045 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 12:28:29,045 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2018-11-23 12:28:29,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 12:28:29,046 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:28:29,046 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 12:28:29,046 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:28:29,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:28:29,047 INFO L82 PathProgramCache]: Analyzing trace with hash 794836574, now seen corresponding path program 1 times [2018-11-23 12:28:29,047 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:28:29,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:28:29,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:28:29,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:28:29,050 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:28:29,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:28:29,139 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 12:28:29,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:28:29,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 12:28:29,140 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:28:29,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 12:28:29,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 12:28:29,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 12:28:29,141 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 7 states. [2018-11-23 12:28:29,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:28:29,277 INFO L93 Difference]: Finished difference Result 1700 states and 5091 transitions. [2018-11-23 12:28:29,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 12:28:29,278 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-23 12:28:29,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:28:29,284 INFO L225 Difference]: With dead ends: 1700 [2018-11-23 12:28:29,284 INFO L226 Difference]: Without dead ends: 1236 [2018-11-23 12:28:29,285 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-11-23 12:28:29,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2018-11-23 12:28:29,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 708. [2018-11-23 12:28:29,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-23 12:28:29,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2047 transitions. [2018-11-23 12:28:29,308 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2047 transitions. Word has length 33 [2018-11-23 12:28:29,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:28:29,308 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2047 transitions. [2018-11-23 12:28:29,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 12:28:29,309 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2047 transitions. [2018-11-23 12:28:29,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 12:28:29,310 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:28:29,310 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 12:28:29,310 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:28:29,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:28:29,311 INFO L82 PathProgramCache]: Analyzing trace with hash -602555494, now seen corresponding path program 2 times [2018-11-23 12:28:29,311 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:28:29,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:28:29,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 12:28:29,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:28:29,313 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:28:29,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:28:29,398 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 12:28:29,398 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:28:29,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 12:28:29,398 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:28:29,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 12:28:29,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 12:28:29,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 12:28:29,399 INFO L87 Difference]: Start difference. First operand 708 states and 2047 transitions. Second operand 7 states. [2018-11-23 12:28:29,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:28:29,568 INFO L93 Difference]: Finished difference Result 1876 states and 5639 transitions. [2018-11-23 12:28:29,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 12:28:29,569 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-23 12:28:29,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:28:29,571 INFO L225 Difference]: With dead ends: 1876 [2018-11-23 12:28:29,571 INFO L226 Difference]: Without dead ends: 556 [2018-11-23 12:28:29,572 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2018-11-23 12:28:29,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2018-11-23 12:28:29,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2018-11-23 12:28:29,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-11-23 12:28:29,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2018-11-23 12:28:29,597 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2018-11-23 12:28:29,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:28:29,597 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2018-11-23 12:28:29,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 12:28:29,597 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2018-11-23 12:28:29,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-23 12:28:29,598 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 12:28:29,598 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 12:28:29,599 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 12:28:29,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:28:29,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1919769948, now seen corresponding path program 3 times [2018-11-23 12:28:29,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 12:28:29,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:28:29,602 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 12:28:29,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 12:28:29,602 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 12:28:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:28:29,678 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 12:28:29,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 12:28:29,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 12:28:29,678 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 12:28:29,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 12:28:29,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 12:28:29,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 12:28:29,679 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 7 states. [2018-11-23 12:28:29,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 12:28:29,730 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2018-11-23 12:28:29,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 12:28:29,731 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-23 12:28:29,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 12:28:29,732 INFO L225 Difference]: With dead ends: 428 [2018-11-23 12:28:29,732 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 12:28:29,732 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-23 12:28:29,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 12:28:29,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 12:28:29,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 12:28:29,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 12:28:29,733 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-23 12:28:29,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 12:28:29,733 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 12:28:29,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 12:28:29,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 12:28:29,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:28:29,737 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 12:28:29,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:28:29 BasicIcfg [2018-11-23 12:28:29,738 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 12:28:29,738 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:28:29,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:28:29,739 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:28:29,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:28:28" (3/4) ... [2018-11-23 12:28:29,741 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 12:28:29,746 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-23 12:28:29,746 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-23 12:28:29,746 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-23 12:28:29,749 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-23 12:28:29,749 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 12:28:29,779 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_714cccb8-162d-46ba-b195-fc468b121aa6/bin-2019/utaipan/witness.graphml [2018-11-23 12:28:29,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:28:29,779 INFO L168 Benchmark]: Toolchain (without parser) took 2432.13 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -112.7 MB). Peak memory consumption was 5.8 MB. Max. memory is 11.5 GB. [2018-11-23 12:28:29,780 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:28:29,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2018-11-23 12:28:29,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:28:29,781 INFO L168 Benchmark]: Boogie Preprocessor took 20.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:28:29,782 INFO L168 Benchmark]: RCFGBuilder took 296.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-23 12:28:29,782 INFO L168 Benchmark]: TraceAbstraction took 1652.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -6.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:28:29,782 INFO L168 Benchmark]: Witness Printer took 40.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-23 12:28:29,786 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 386.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -142.5 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.06 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 296.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1652.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -6.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 40.71 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 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, 1.5s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 390 SDtfs, 465 SDslu, 1044 SDs, 0 SdLazy, 121 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 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, 528 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 15038 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...