./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/podwr000_tso.oepc_false-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/podwr000_tso.oepc_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/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 5d47cd5e0362cfb9cdc3cd6cf91a7de425b3d49d ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:21:05,174 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:21:05,176 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:21:05,183 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:21:05,183 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:21:05,184 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:21:05,185 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:21:05,186 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:21:05,187 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:21:05,188 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:21:05,188 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:21:05,188 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:21:05,189 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:21:05,190 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:21:05,190 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:21:05,191 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:21:05,191 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:21:05,193 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:21:05,194 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:21:05,195 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:21:05,196 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:21:05,196 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:21:05,198 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:21:05,198 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:21:05,198 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:21:05,199 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:21:05,199 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:21:05,199 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:21:05,200 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:21:05,200 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:21:05,200 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:21:05,201 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:21:05,201 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:21:05,201 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:21:05,201 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:21:05,202 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:21:05,202 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:21:05,209 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:21:05,209 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:21:05,209 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:21:05,209 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:21:05,210 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:21:05,210 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:21:05,210 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:21:05,210 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:21:05,210 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:21:05,210 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:21:05,210 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:21:05,210 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:21:05,210 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:21:05,211 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:21:05,211 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:21:05,211 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:21:05,211 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:21:05,211 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:21:05,211 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:21:05,211 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:21:05,211 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:21:05,211 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:21:05,211 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:21:05,211 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:21:05,211 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:21:05,211 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:21:05,212 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:21:05,212 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:21:05,212 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:21:05,212 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:21:05,212 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:21:05,212 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:21:05,212 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:21:05,212 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:21:05,212 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:21:05,212 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:21:05,212 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_e81a1280-d029-46dd-92c8-e1d631a3946f/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 -> 5d47cd5e0362cfb9cdc3cd6cf91a7de425b3d49d [2018-12-09 19:21:05,230 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:21:05,239 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:21:05,241 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:21:05,242 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:21:05,243 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:21:05,243 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/podwr000_tso.oepc_false-unreach-call.i [2018-12-09 19:21:05,289 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/bin-2019/utaipan/data/de8696384/7b5b3db2f6f44ba6ba65a492a499f454/FLAG5db05df0d [2018-12-09 19:21:05,693 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:21:05,694 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/sv-benchmarks/c/pthread-wmm/podwr000_tso.oepc_false-unreach-call.i [2018-12-09 19:21:05,700 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/bin-2019/utaipan/data/de8696384/7b5b3db2f6f44ba6ba65a492a499f454/FLAG5db05df0d [2018-12-09 19:21:05,708 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/bin-2019/utaipan/data/de8696384/7b5b3db2f6f44ba6ba65a492a499f454 [2018-12-09 19:21:05,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:21:05,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:21:05,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:21:05,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:21:05,714 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:21:05,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:21:05" (1/1) ... [2018-12-09 19:21:05,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@628262cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:05, skipping insertion in model container [2018-12-09 19:21:05,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:21:05" (1/1) ... [2018-12-09 19:21:05,720 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:21:05,742 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:21:05,926 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:21:05,934 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:21:06,031 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:21:06,074 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:21:06,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:06 WrapperNode [2018-12-09 19:21:06,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:21:06,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:21:06,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:21:06,076 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:21:06,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:06" (1/1) ... [2018-12-09 19:21:06,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:06" (1/1) ... [2018-12-09 19:21:06,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:21:06,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:21:06,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:21:06,117 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:21:06,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:06" (1/1) ... [2018-12-09 19:21:06,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:06" (1/1) ... [2018-12-09 19:21:06,127 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:06" (1/1) ... [2018-12-09 19:21:06,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:06" (1/1) ... [2018-12-09 19:21:06,133 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:06" (1/1) ... [2018-12-09 19:21:06,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:06" (1/1) ... [2018-12-09 19:21:06,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:06" (1/1) ... [2018-12-09 19:21:06,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:21:06,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:21:06,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:21:06,139 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:21:06,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/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 [2018-12-09 19:21:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:21:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 19:21:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-09 19:21:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:21:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-09 19:21:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-09 19:21:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-09 19:21:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-09 19:21:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-09 19:21:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:21:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:21:06,175 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-09 19:21:06,474 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:21:06,474 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 19:21:06,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:21:06 BoogieIcfgContainer [2018-12-09 19:21:06,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:21:06,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:21:06,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:21:06,477 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:21:06,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:21:05" (1/3) ... [2018-12-09 19:21:06,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b673930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:21:06, skipping insertion in model container [2018-12-09 19:21:06,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:21:06" (2/3) ... [2018-12-09 19:21:06,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b673930 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:21:06, skipping insertion in model container [2018-12-09 19:21:06,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:21:06" (3/3) ... [2018-12-09 19:21:06,478 INFO L112 eAbstractionObserver]: Analyzing ICFG podwr000_tso.oepc_false-unreach-call.i [2018-12-09 19:21:06,500 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,500 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,501 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,501 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,501 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,501 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,501 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,501 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,501 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,501 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,501 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,502 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,502 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,502 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,502 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,502 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,502 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,502 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,502 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,502 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,502 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,503 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,503 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,503 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,503 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,503 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,503 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,503 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,503 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,503 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,503 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,504 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,504 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,504 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,504 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,504 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,504 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,504 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet9.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,504 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,505 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,505 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,505 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet10.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,505 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,505 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet10.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,505 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet11.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,505 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet10.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,505 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,505 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet11.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,505 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet10.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,505 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,506 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,506 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,506 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,506 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,506 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,506 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,507 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,507 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,507 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,507 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,507 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,507 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,507 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,507 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,507 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,507 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,507 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,508 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,508 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,508 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,508 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,508 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,508 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,508 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,508 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,508 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,508 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,509 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,509 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,509 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,509 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,509 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,509 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,509 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,509 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,509 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,510 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,510 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,510 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,510 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,510 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,510 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,510 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,510 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,510 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,511 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,511 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,511 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,511 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,511 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,511 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,511 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,511 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,511 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,514 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,514 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,514 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,514 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,514 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,514 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,514 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,514 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,514 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,514 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,515 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,515 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,515 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,515 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,515 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,515 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,515 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,515 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,515 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,516 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,516 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,516 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,516 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,516 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,516 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,516 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,516 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,516 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,516 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,517 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,517 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,517 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite37| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,517 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,517 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,517 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,517 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite38| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,517 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet39.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,517 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet39.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,518 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,518 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,518 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet39.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,518 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet39.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:21:06,522 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-09 19:21:06,522 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:21:06,527 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-09 19:21:06,536 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-09 19:21:06,550 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:21:06,550 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:21:06,551 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:21:06,551 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:21:06,551 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:21:06,551 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:21:06,551 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:21:06,551 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:21:06,557 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 142places, 180 transitions [2018-12-09 19:21:08,162 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 34806 states. [2018-12-09 19:21:08,164 INFO L276 IsEmpty]: Start isEmpty. Operand 34806 states. [2018-12-09 19:21:08,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 19:21:08,168 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:08,169 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] [2018-12-09 19:21:08,170 INFO L423 AbstractCegarLoop]: === Iteration 1 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:08,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:08,174 INFO L82 PathProgramCache]: Analyzing trace with hash -454041356, now seen corresponding path program 1 times [2018-12-09 19:21:08,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:08,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:08,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:08,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:08,210 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:08,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:08,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:08,311 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:08,311 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:21:08,311 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:08,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:21:08,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:21:08,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:08,324 INFO L87 Difference]: Start difference. First operand 34806 states. Second operand 4 states. [2018-12-09 19:21:08,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:08,853 INFO L93 Difference]: Finished difference Result 60790 states and 234493 transitions. [2018-12-09 19:21:08,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:21:08,855 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-12-09 19:21:08,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:09,025 INFO L225 Difference]: With dead ends: 60790 [2018-12-09 19:21:09,026 INFO L226 Difference]: Without dead ends: 44270 [2018-12-09 19:21:09,027 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:09,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44270 states. [2018-12-09 19:21:09,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44270 to 27338. [2018-12-09 19:21:09,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27338 states. [2018-12-09 19:21:09,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27338 states to 27338 states and 105499 transitions. [2018-12-09 19:21:09,811 INFO L78 Accepts]: Start accepts. Automaton has 27338 states and 105499 transitions. Word has length 33 [2018-12-09 19:21:09,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:09,811 INFO L480 AbstractCegarLoop]: Abstraction has 27338 states and 105499 transitions. [2018-12-09 19:21:09,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:21:09,812 INFO L276 IsEmpty]: Start isEmpty. Operand 27338 states and 105499 transitions. [2018-12-09 19:21:09,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-12-09 19:21:09,816 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:09,816 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:09,816 INFO L423 AbstractCegarLoop]: === Iteration 2 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:09,816 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:09,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1863363909, now seen corresponding path program 1 times [2018-12-09 19:21:09,816 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:09,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:09,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:09,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:09,819 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:09,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:09,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:09,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:21:09,867 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:09,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:21:09,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:21:09,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:09,868 INFO L87 Difference]: Start difference. First operand 27338 states and 105499 transitions. Second operand 4 states. [2018-12-09 19:21:09,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:09,923 INFO L93 Difference]: Finished difference Result 8528 states and 28344 transitions. [2018-12-09 19:21:09,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 19:21:09,923 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2018-12-09 19:21:09,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:09,937 INFO L225 Difference]: With dead ends: 8528 [2018-12-09 19:21:09,937 INFO L226 Difference]: Without dead ends: 7466 [2018-12-09 19:21:09,938 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 [2018-12-09 19:21:09,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7466 states. [2018-12-09 19:21:10,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7466 to 7466. [2018-12-09 19:21:10,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7466 states. [2018-12-09 19:21:10,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7466 states to 7466 states and 24636 transitions. [2018-12-09 19:21:10,022 INFO L78 Accepts]: Start accepts. Automaton has 7466 states and 24636 transitions. Word has length 45 [2018-12-09 19:21:10,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:10,022 INFO L480 AbstractCegarLoop]: Abstraction has 7466 states and 24636 transitions. [2018-12-09 19:21:10,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:21:10,022 INFO L276 IsEmpty]: Start isEmpty. Operand 7466 states and 24636 transitions. [2018-12-09 19:21:10,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 19:21:10,023 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:10,023 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:10,024 INFO L423 AbstractCegarLoop]: === Iteration 3 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:10,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:10,024 INFO L82 PathProgramCache]: Analyzing trace with hash 591681941, now seen corresponding path program 1 times [2018-12-09 19:21:10,024 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:10,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:10,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:10,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:10,027 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:10,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:10,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:10,076 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:10,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:21:10,077 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:10,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:21:10,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:21:10,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:21:10,077 INFO L87 Difference]: Start difference. First operand 7466 states and 24636 transitions. Second operand 5 states. [2018-12-09 19:21:10,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:10,279 INFO L93 Difference]: Finished difference Result 13998 states and 45805 transitions. [2018-12-09 19:21:10,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:21:10,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2018-12-09 19:21:10,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:10,302 INFO L225 Difference]: With dead ends: 13998 [2018-12-09 19:21:10,302 INFO L226 Difference]: Without dead ends: 13930 [2018-12-09 19:21:10,302 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:21:10,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13930 states. [2018-12-09 19:21:10,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13930 to 9441. [2018-12-09 19:21:10,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9441 states. [2018-12-09 19:21:10,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9441 states to 9441 states and 30542 transitions. [2018-12-09 19:21:10,441 INFO L78 Accepts]: Start accepts. Automaton has 9441 states and 30542 transitions. Word has length 46 [2018-12-09 19:21:10,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:10,442 INFO L480 AbstractCegarLoop]: Abstraction has 9441 states and 30542 transitions. [2018-12-09 19:21:10,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:21:10,442 INFO L276 IsEmpty]: Start isEmpty. Operand 9441 states and 30542 transitions. [2018-12-09 19:21:10,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-12-09 19:21:10,443 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:10,443 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:10,443 INFO L423 AbstractCegarLoop]: === Iteration 4 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:10,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:10,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1652121253, now seen corresponding path program 1 times [2018-12-09 19:21:10,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:10,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:10,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:10,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:10,445 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:10,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:10,467 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:10,468 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:21:10,468 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:10,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:21:10,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:21:10,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:21:10,468 INFO L87 Difference]: Start difference. First operand 9441 states and 30542 transitions. Second operand 3 states. [2018-12-09 19:21:10,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:10,522 INFO L93 Difference]: Finished difference Result 13279 states and 42641 transitions. [2018-12-09 19:21:10,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:21:10,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-12-09 19:21:10,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:10,605 INFO L225 Difference]: With dead ends: 13279 [2018-12-09 19:21:10,605 INFO L226 Difference]: Without dead ends: 13279 [2018-12-09 19:21:10,606 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:21:10,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13279 states. [2018-12-09 19:21:10,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13279 to 9845. [2018-12-09 19:21:10,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9845 states. [2018-12-09 19:21:10,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9845 states to 9845 states and 31508 transitions. [2018-12-09 19:21:10,731 INFO L78 Accepts]: Start accepts. Automaton has 9845 states and 31508 transitions. Word has length 48 [2018-12-09 19:21:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:10,731 INFO L480 AbstractCegarLoop]: Abstraction has 9845 states and 31508 transitions. [2018-12-09 19:21:10,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:21:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand 9845 states and 31508 transitions. [2018-12-09 19:21:10,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 19:21:10,733 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:10,733 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:10,733 INFO L423 AbstractCegarLoop]: === Iteration 5 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:10,733 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:10,733 INFO L82 PathProgramCache]: Analyzing trace with hash -164023066, now seen corresponding path program 1 times [2018-12-09 19:21:10,733 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:10,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:10,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:10,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:10,735 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:10,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:10,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:10,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:10,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:21:10,816 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:10,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:21:10,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:21:10,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:21:10,817 INFO L87 Difference]: Start difference. First operand 9845 states and 31508 transitions. Second operand 7 states. [2018-12-09 19:21:11,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:11,188 INFO L93 Difference]: Finished difference Result 12285 states and 38673 transitions. [2018-12-09 19:21:11,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 19:21:11,188 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-09 19:21:11,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:11,201 INFO L225 Difference]: With dead ends: 12285 [2018-12-09 19:21:11,202 INFO L226 Difference]: Without dead ends: 12213 [2018-12-09 19:21:11,202 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-12-09 19:21:11,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12213 states. [2018-12-09 19:21:11,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12213 to 10849. [2018-12-09 19:21:11,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10849 states. [2018-12-09 19:21:11,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10849 states to 10849 states and 34563 transitions. [2018-12-09 19:21:11,321 INFO L78 Accepts]: Start accepts. Automaton has 10849 states and 34563 transitions. Word has length 52 [2018-12-09 19:21:11,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:11,321 INFO L480 AbstractCegarLoop]: Abstraction has 10849 states and 34563 transitions. [2018-12-09 19:21:11,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:21:11,322 INFO L276 IsEmpty]: Start isEmpty. Operand 10849 states and 34563 transitions. [2018-12-09 19:21:11,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-09 19:21:11,325 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:11,325 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, 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] [2018-12-09 19:21:11,325 INFO L423 AbstractCegarLoop]: === Iteration 6 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:11,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:11,325 INFO L82 PathProgramCache]: Analyzing trace with hash 317195842, now seen corresponding path program 1 times [2018-12-09 19:21:11,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:11,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:11,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:11,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:11,327 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:11,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:11,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:21:11,362 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:11,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:21:11,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:21:11,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:11,363 INFO L87 Difference]: Start difference. First operand 10849 states and 34563 transitions. Second operand 4 states. [2018-12-09 19:21:11,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:11,446 INFO L93 Difference]: Finished difference Result 12396 states and 39572 transitions. [2018-12-09 19:21:11,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 19:21:11,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-12-09 19:21:11,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:11,461 INFO L225 Difference]: With dead ends: 12396 [2018-12-09 19:21:11,462 INFO L226 Difference]: Without dead ends: 12396 [2018-12-09 19:21:11,462 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:21:11,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12396 states. [2018-12-09 19:21:11,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12396 to 11369. [2018-12-09 19:21:11,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11369 states. [2018-12-09 19:21:11,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11369 states to 11369 states and 36236 transitions. [2018-12-09 19:21:11,590 INFO L78 Accepts]: Start accepts. Automaton has 11369 states and 36236 transitions. Word has length 60 [2018-12-09 19:21:11,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:11,591 INFO L480 AbstractCegarLoop]: Abstraction has 11369 states and 36236 transitions. [2018-12-09 19:21:11,591 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:21:11,591 INFO L276 IsEmpty]: Start isEmpty. Operand 11369 states and 36236 transitions. [2018-12-09 19:21:11,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-09 19:21:11,595 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:11,595 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, 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] [2018-12-09 19:21:11,595 INFO L423 AbstractCegarLoop]: === Iteration 7 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:11,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:11,595 INFO L82 PathProgramCache]: Analyzing trace with hash 2060006177, now seen corresponding path program 1 times [2018-12-09 19:21:11,596 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:11,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:11,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:11,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:11,597 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:11,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:11,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:11,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:21:11,660 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:11,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:21:11,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:21:11,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:21:11,661 INFO L87 Difference]: Start difference. First operand 11369 states and 36236 transitions. Second operand 6 states. [2018-12-09 19:21:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:11,962 INFO L93 Difference]: Finished difference Result 20969 states and 66486 transitions. [2018-12-09 19:21:11,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 19:21:11,962 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2018-12-09 19:21:11,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:11,990 INFO L225 Difference]: With dead ends: 20969 [2018-12-09 19:21:11,990 INFO L226 Difference]: Without dead ends: 20898 [2018-12-09 19:21:11,990 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-12-09 19:21:12,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20898 states. [2018-12-09 19:21:12,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20898 to 13755. [2018-12-09 19:21:12,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13755 states. [2018-12-09 19:21:12,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13755 states to 13755 states and 43280 transitions. [2018-12-09 19:21:12,263 INFO L78 Accepts]: Start accepts. Automaton has 13755 states and 43280 transitions. Word has length 60 [2018-12-09 19:21:12,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:12,263 INFO L480 AbstractCegarLoop]: Abstraction has 13755 states and 43280 transitions. [2018-12-09 19:21:12,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:21:12,263 INFO L276 IsEmpty]: Start isEmpty. Operand 13755 states and 43280 transitions. [2018-12-09 19:21:12,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 19:21:12,268 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:12,268 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, 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] [2018-12-09 19:21:12,268 INFO L423 AbstractCegarLoop]: === Iteration 8 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:12,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:12,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1699576415, now seen corresponding path program 1 times [2018-12-09 19:21:12,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:12,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:12,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:12,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:12,270 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:12,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:12,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:12,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:12,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:21:12,300 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:12,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:21:12,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:21:12,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:12,300 INFO L87 Difference]: Start difference. First operand 13755 states and 43280 transitions. Second operand 4 states. [2018-12-09 19:21:12,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:12,488 INFO L93 Difference]: Finished difference Result 17635 states and 54585 transitions. [2018-12-09 19:21:12,489 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:21:12,489 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2018-12-09 19:21:12,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:12,509 INFO L225 Difference]: With dead ends: 17635 [2018-12-09 19:21:12,509 INFO L226 Difference]: Without dead ends: 17635 [2018-12-09 19:21:12,510 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:12,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17635 states. [2018-12-09 19:21:12,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17635 to 15793. [2018-12-09 19:21:12,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15793 states. [2018-12-09 19:21:12,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15793 states to 15793 states and 49131 transitions. [2018-12-09 19:21:12,695 INFO L78 Accepts]: Start accepts. Automaton has 15793 states and 49131 transitions. Word has length 64 [2018-12-09 19:21:12,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:12,696 INFO L480 AbstractCegarLoop]: Abstraction has 15793 states and 49131 transitions. [2018-12-09 19:21:12,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:21:12,696 INFO L276 IsEmpty]: Start isEmpty. Operand 15793 states and 49131 transitions. [2018-12-09 19:21:12,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 19:21:12,701 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:12,701 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, 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] [2018-12-09 19:21:12,701 INFO L423 AbstractCegarLoop]: === Iteration 9 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:12,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:12,701 INFO L82 PathProgramCache]: Analyzing trace with hash -377632928, now seen corresponding path program 1 times [2018-12-09 19:21:12,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:12,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:12,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:12,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:12,703 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:12,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:12,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:12,725 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:12,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:21:12,725 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:12,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:21:12,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:21:12,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:21:12,725 INFO L87 Difference]: Start difference. First operand 15793 states and 49131 transitions. Second operand 3 states. [2018-12-09 19:21:12,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:12,888 INFO L93 Difference]: Finished difference Result 16385 states and 50738 transitions. [2018-12-09 19:21:12,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:21:12,888 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2018-12-09 19:21:12,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:12,907 INFO L225 Difference]: With dead ends: 16385 [2018-12-09 19:21:12,907 INFO L226 Difference]: Without dead ends: 16385 [2018-12-09 19:21:12,907 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:21:12,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16385 states. [2018-12-09 19:21:13,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16385 to 16109. [2018-12-09 19:21:13,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16109 states. [2018-12-09 19:21:13,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16109 states to 16109 states and 49981 transitions. [2018-12-09 19:21:13,079 INFO L78 Accepts]: Start accepts. Automaton has 16109 states and 49981 transitions. Word has length 64 [2018-12-09 19:21:13,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:13,079 INFO L480 AbstractCegarLoop]: Abstraction has 16109 states and 49981 transitions. [2018-12-09 19:21:13,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:21:13,079 INFO L276 IsEmpty]: Start isEmpty. Operand 16109 states and 49981 transitions. [2018-12-09 19:21:13,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-12-09 19:21:13,085 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:13,085 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, 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] [2018-12-09 19:21:13,085 INFO L423 AbstractCegarLoop]: === Iteration 10 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:13,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:13,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1938632710, now seen corresponding path program 1 times [2018-12-09 19:21:13,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:13,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:13,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:13,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:13,087 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:13,151 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:13,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:21:13,151 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:13,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:21:13,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:21:13,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:21:13,152 INFO L87 Difference]: Start difference. First operand 16109 states and 49981 transitions. Second operand 6 states. [2018-12-09 19:21:13,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:13,833 INFO L93 Difference]: Finished difference Result 19821 states and 60437 transitions. [2018-12-09 19:21:13,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:21:13,833 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2018-12-09 19:21:13,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:13,852 INFO L225 Difference]: With dead ends: 19821 [2018-12-09 19:21:13,852 INFO L226 Difference]: Without dead ends: 19821 [2018-12-09 19:21:13,852 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 [2018-12-09 19:21:13,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19821 states. [2018-12-09 19:21:14,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19821 to 18617. [2018-12-09 19:21:14,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18617 states. [2018-12-09 19:21:14,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18617 states to 18617 states and 57217 transitions. [2018-12-09 19:21:14,049 INFO L78 Accepts]: Start accepts. Automaton has 18617 states and 57217 transitions. Word has length 66 [2018-12-09 19:21:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:14,049 INFO L480 AbstractCegarLoop]: Abstraction has 18617 states and 57217 transitions. [2018-12-09 19:21:14,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:21:14,050 INFO L276 IsEmpty]: Start isEmpty. Operand 18617 states and 57217 transitions. [2018-12-09 19:21:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-12-09 19:21:14,056 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:14,056 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, 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] [2018-12-09 19:21:14,057 INFO L423 AbstractCegarLoop]: === Iteration 11 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:14,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:14,057 INFO L82 PathProgramCache]: Analyzing trace with hash -138576633, now seen corresponding path program 1 times [2018-12-09 19:21:14,057 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:14,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:14,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:14,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:14,058 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:14,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:14,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:14,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:21:14,135 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:14,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:21:14,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:21:14,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:21:14,135 INFO L87 Difference]: Start difference. First operand 18617 states and 57217 transitions. Second operand 6 states. [2018-12-09 19:21:14,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:14,419 INFO L93 Difference]: Finished difference Result 21449 states and 63626 transitions. [2018-12-09 19:21:14,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 19:21:14,420 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2018-12-09 19:21:14,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:14,444 INFO L225 Difference]: With dead ends: 21449 [2018-12-09 19:21:14,444 INFO L226 Difference]: Without dead ends: 21449 [2018-12-09 19:21:14,445 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:21:14,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21449 states. [2018-12-09 19:21:14,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21449 to 19133. [2018-12-09 19:21:14,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19133 states. [2018-12-09 19:21:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19133 states to 19133 states and 57764 transitions. [2018-12-09 19:21:14,659 INFO L78 Accepts]: Start accepts. Automaton has 19133 states and 57764 transitions. Word has length 66 [2018-12-09 19:21:14,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:14,659 INFO L480 AbstractCegarLoop]: Abstraction has 19133 states and 57764 transitions. [2018-12-09 19:21:14,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:21:14,659 INFO L276 IsEmpty]: Start isEmpty. Operand 19133 states and 57764 transitions. [2018-12-09 19:21:14,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-12-09 19:21:14,666 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:14,666 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, 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] [2018-12-09 19:21:14,667 INFO L423 AbstractCegarLoop]: === Iteration 12 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:14,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:14,667 INFO L82 PathProgramCache]: Analyzing trace with hash 72774280, now seen corresponding path program 1 times [2018-12-09 19:21:14,667 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:14,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:14,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:14,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:14,668 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:14,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:14,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:14,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:21:14,715 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:14,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:21:14,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:21:14,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:21:14,716 INFO L87 Difference]: Start difference. First operand 19133 states and 57764 transitions. Second operand 5 states. [2018-12-09 19:21:14,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:14,950 INFO L93 Difference]: Finished difference Result 25024 states and 75018 transitions. [2018-12-09 19:21:14,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:21:14,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2018-12-09 19:21:14,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:14,980 INFO L225 Difference]: With dead ends: 25024 [2018-12-09 19:21:14,980 INFO L226 Difference]: Without dead ends: 25024 [2018-12-09 19:21:14,980 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:21:15,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25024 states. [2018-12-09 19:21:15,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25024 to 22709. [2018-12-09 19:21:15,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22709 states. [2018-12-09 19:21:15,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22709 states to 22709 states and 68032 transitions. [2018-12-09 19:21:15,243 INFO L78 Accepts]: Start accepts. Automaton has 22709 states and 68032 transitions. Word has length 66 [2018-12-09 19:21:15,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:15,243 INFO L480 AbstractCegarLoop]: Abstraction has 22709 states and 68032 transitions. [2018-12-09 19:21:15,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:21:15,243 INFO L276 IsEmpty]: Start isEmpty. Operand 22709 states and 68032 transitions. [2018-12-09 19:21:15,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-12-09 19:21:15,253 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:15,253 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, 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] [2018-12-09 19:21:15,253 INFO L423 AbstractCegarLoop]: === Iteration 13 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:15,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:15,254 INFO L82 PathProgramCache]: Analyzing trace with hash -437759897, now seen corresponding path program 1 times [2018-12-09 19:21:15,254 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:15,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:15,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:15,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:15,255 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:15,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:15,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:15,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:21:15,300 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:15,300 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:21:15,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:21:15,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:21:15,301 INFO L87 Difference]: Start difference. First operand 22709 states and 68032 transitions. Second operand 5 states. [2018-12-09 19:21:15,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:15,347 INFO L93 Difference]: Finished difference Result 7837 states and 18946 transitions. [2018-12-09 19:21:15,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 19:21:15,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2018-12-09 19:21:15,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:15,354 INFO L225 Difference]: With dead ends: 7837 [2018-12-09 19:21:15,354 INFO L226 Difference]: Without dead ends: 6355 [2018-12-09 19:21:15,355 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 [2018-12-09 19:21:15,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2018-12-09 19:21:15,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 5703. [2018-12-09 19:21:15,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5703 states. [2018-12-09 19:21:15,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5703 states to 5703 states and 13364 transitions. [2018-12-09 19:21:15,409 INFO L78 Accepts]: Start accepts. Automaton has 5703 states and 13364 transitions. Word has length 66 [2018-12-09 19:21:15,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:15,409 INFO L480 AbstractCegarLoop]: Abstraction has 5703 states and 13364 transitions. [2018-12-09 19:21:15,409 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:21:15,410 INFO L276 IsEmpty]: Start isEmpty. Operand 5703 states and 13364 transitions. [2018-12-09 19:21:15,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-12-09 19:21:15,413 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:15,413 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, 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] [2018-12-09 19:21:15,413 INFO L423 AbstractCegarLoop]: === Iteration 14 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:15,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:15,414 INFO L82 PathProgramCache]: Analyzing trace with hash 890203314, now seen corresponding path program 1 times [2018-12-09 19:21:15,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:15,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:15,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:15,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:15,415 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:15,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:15,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:15,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:21:15,438 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:15,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:21:15,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:21:15,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:21:15,438 INFO L87 Difference]: Start difference. First operand 5703 states and 13364 transitions. Second operand 3 states. [2018-12-09 19:21:15,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:15,464 INFO L93 Difference]: Finished difference Result 7505 states and 17450 transitions. [2018-12-09 19:21:15,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:21:15,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2018-12-09 19:21:15,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:15,469 INFO L225 Difference]: With dead ends: 7505 [2018-12-09 19:21:15,469 INFO L226 Difference]: Without dead ends: 7505 [2018-12-09 19:21:15,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:21:15,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7505 states. [2018-12-09 19:21:15,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7505 to 5642. [2018-12-09 19:21:15,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5642 states. [2018-12-09 19:21:15,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5642 states to 5642 states and 12904 transitions. [2018-12-09 19:21:15,522 INFO L78 Accepts]: Start accepts. Automaton has 5642 states and 12904 transitions. Word has length 66 [2018-12-09 19:21:15,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:15,522 INFO L480 AbstractCegarLoop]: Abstraction has 5642 states and 12904 transitions. [2018-12-09 19:21:15,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:21:15,522 INFO L276 IsEmpty]: Start isEmpty. Operand 5642 states and 12904 transitions. [2018-12-09 19:21:15,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-12-09 19:21:15,527 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:15,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:15,528 INFO L423 AbstractCegarLoop]: === Iteration 15 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:15,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:15,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1181781029, now seen corresponding path program 1 times [2018-12-09 19:21:15,528 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:15,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:15,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:15,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:15,529 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:15,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:15,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:15,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:21:15,577 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:15,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:21:15,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:21:15,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:21:15,577 INFO L87 Difference]: Start difference. First operand 5642 states and 12904 transitions. Second operand 5 states. [2018-12-09 19:21:15,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:15,677 INFO L93 Difference]: Finished difference Result 6806 states and 15528 transitions. [2018-12-09 19:21:15,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 19:21:15,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2018-12-09 19:21:15,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:15,682 INFO L225 Difference]: With dead ends: 6806 [2018-12-09 19:21:15,682 INFO L226 Difference]: Without dead ends: 6806 [2018-12-09 19:21:15,683 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:21:15,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6806 states. [2018-12-09 19:21:15,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6806 to 6086. [2018-12-09 19:21:15,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6086 states. [2018-12-09 19:21:15,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6086 states to 6086 states and 13908 transitions. [2018-12-09 19:21:15,743 INFO L78 Accepts]: Start accepts. Automaton has 6086 states and 13908 transitions. Word has length 72 [2018-12-09 19:21:15,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:15,744 INFO L480 AbstractCegarLoop]: Abstraction has 6086 states and 13908 transitions. [2018-12-09 19:21:15,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:21:15,744 INFO L276 IsEmpty]: Start isEmpty. Operand 6086 states and 13908 transitions. [2018-12-09 19:21:15,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-12-09 19:21:15,749 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:15,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:15,750 INFO L423 AbstractCegarLoop]: === Iteration 16 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:15,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:15,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1370375932, now seen corresponding path program 1 times [2018-12-09 19:21:15,750 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:15,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:15,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:15,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:15,751 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:15,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:15,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:15,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 19:21:15,928 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:15,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 19:21:15,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 19:21:15,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:21:15,928 INFO L87 Difference]: Start difference. First operand 6086 states and 13908 transitions. Second operand 9 states. [2018-12-09 19:21:16,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:16,251 INFO L93 Difference]: Finished difference Result 8112 states and 18389 transitions. [2018-12-09 19:21:16,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-09 19:21:16,252 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 72 [2018-12-09 19:21:16,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:16,260 INFO L225 Difference]: With dead ends: 8112 [2018-12-09 19:21:16,260 INFO L226 Difference]: Without dead ends: 7993 [2018-12-09 19:21:16,261 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-12-09 19:21:16,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7993 states. [2018-12-09 19:21:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7993 to 6183. [2018-12-09 19:21:16,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6183 states. [2018-12-09 19:21:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6183 states to 6183 states and 14001 transitions. [2018-12-09 19:21:16,321 INFO L78 Accepts]: Start accepts. Automaton has 6183 states and 14001 transitions. Word has length 72 [2018-12-09 19:21:16,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:16,321 INFO L480 AbstractCegarLoop]: Abstraction has 6183 states and 14001 transitions. [2018-12-09 19:21:16,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 19:21:16,321 INFO L276 IsEmpty]: Start isEmpty. Operand 6183 states and 14001 transitions. [2018-12-09 19:21:16,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-09 19:21:16,326 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:16,326 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:16,326 INFO L423 AbstractCegarLoop]: === Iteration 17 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:16,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:16,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1174333635, now seen corresponding path program 1 times [2018-12-09 19:21:16,327 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:16,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:16,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:16,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:16,328 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:16,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:16,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:16,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:21:16,363 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:16,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:21:16,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:21:16,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:16,363 INFO L87 Difference]: Start difference. First operand 6183 states and 14001 transitions. Second operand 4 states. [2018-12-09 19:21:16,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:16,537 INFO L93 Difference]: Finished difference Result 9854 states and 22232 transitions. [2018-12-09 19:21:16,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:21:16,537 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2018-12-09 19:21:16,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:16,543 INFO L225 Difference]: With dead ends: 9854 [2018-12-09 19:21:16,543 INFO L226 Difference]: Without dead ends: 9854 [2018-12-09 19:21:16,544 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:16,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9854 states. [2018-12-09 19:21:16,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9854 to 7303. [2018-12-09 19:21:16,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7303 states. [2018-12-09 19:21:16,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7303 states to 7303 states and 16335 transitions. [2018-12-09 19:21:16,605 INFO L78 Accepts]: Start accepts. Automaton has 7303 states and 16335 transitions. Word has length 91 [2018-12-09 19:21:16,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:16,605 INFO L480 AbstractCegarLoop]: Abstraction has 7303 states and 16335 transitions. [2018-12-09 19:21:16,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:21:16,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7303 states and 16335 transitions. [2018-12-09 19:21:16,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-09 19:21:16,611 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:16,611 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:16,611 INFO L423 AbstractCegarLoop]: === Iteration 18 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:16,611 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:16,612 INFO L82 PathProgramCache]: Analyzing trace with hash 39095599, now seen corresponding path program 1 times [2018-12-09 19:21:16,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:16,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:16,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:16,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:16,613 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:16,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:16,651 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:16,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:21:16,651 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:16,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:21:16,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:21:16,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:16,651 INFO L87 Difference]: Start difference. First operand 7303 states and 16335 transitions. Second operand 4 states. [2018-12-09 19:21:16,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:16,710 INFO L93 Difference]: Finished difference Result 7805 states and 17493 transitions. [2018-12-09 19:21:16,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:21:16,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 91 [2018-12-09 19:21:16,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:16,715 INFO L225 Difference]: With dead ends: 7805 [2018-12-09 19:21:16,715 INFO L226 Difference]: Without dead ends: 7805 [2018-12-09 19:21:16,715 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:21:16,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7805 states. [2018-12-09 19:21:16,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7805 to 7209. [2018-12-09 19:21:16,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7209 states. [2018-12-09 19:21:16,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7209 states to 7209 states and 16230 transitions. [2018-12-09 19:21:16,768 INFO L78 Accepts]: Start accepts. Automaton has 7209 states and 16230 transitions. Word has length 91 [2018-12-09 19:21:16,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:16,768 INFO L480 AbstractCegarLoop]: Abstraction has 7209 states and 16230 transitions. [2018-12-09 19:21:16,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:21:16,768 INFO L276 IsEmpty]: Start isEmpty. Operand 7209 states and 16230 transitions. [2018-12-09 19:21:16,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-09 19:21:16,774 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:16,774 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:16,774 INFO L423 AbstractCegarLoop]: === Iteration 19 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:16,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:16,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1715163703, now seen corresponding path program 1 times [2018-12-09 19:21:16,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:16,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:16,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:16,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:16,775 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:16,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:16,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:16,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:16,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:21:16,830 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:16,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:21:16,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:21:16,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:21:16,830 INFO L87 Difference]: Start difference. First operand 7209 states and 16230 transitions. Second operand 7 states. [2018-12-09 19:21:17,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:17,266 INFO L93 Difference]: Finished difference Result 8986 states and 20184 transitions. [2018-12-09 19:21:17,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:21:17,267 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2018-12-09 19:21:17,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:17,276 INFO L225 Difference]: With dead ends: 8986 [2018-12-09 19:21:17,277 INFO L226 Difference]: Without dead ends: 8986 [2018-12-09 19:21:17,277 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:21:17,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8986 states. [2018-12-09 19:21:17,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8986 to 7321. [2018-12-09 19:21:17,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7321 states. [2018-12-09 19:21:17,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7321 states to 7321 states and 16550 transitions. [2018-12-09 19:21:17,342 INFO L78 Accepts]: Start accepts. Automaton has 7321 states and 16550 transitions. Word has length 93 [2018-12-09 19:21:17,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:17,342 INFO L480 AbstractCegarLoop]: Abstraction has 7321 states and 16550 transitions. [2018-12-09 19:21:17,342 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:21:17,343 INFO L276 IsEmpty]: Start isEmpty. Operand 7321 states and 16550 transitions. [2018-12-09 19:21:17,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-09 19:21:17,347 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:17,348 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:17,348 INFO L423 AbstractCegarLoop]: === Iteration 20 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:17,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:17,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1745561198, now seen corresponding path program 1 times [2018-12-09 19:21:17,348 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:17,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:17,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:17,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:17,349 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:17,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:17,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:17,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:21:17,390 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:17,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:21:17,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:21:17,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:21:17,391 INFO L87 Difference]: Start difference. First operand 7321 states and 16550 transitions. Second operand 5 states. [2018-12-09 19:21:17,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:17,485 INFO L93 Difference]: Finished difference Result 8130 states and 18286 transitions. [2018-12-09 19:21:17,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:21:17,486 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2018-12-09 19:21:17,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:17,491 INFO L225 Difference]: With dead ends: 8130 [2018-12-09 19:21:17,491 INFO L226 Difference]: Without dead ends: 8130 [2018-12-09 19:21:17,491 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:21:17,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8130 states. [2018-12-09 19:21:17,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8130 to 6217. [2018-12-09 19:21:17,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6217 states. [2018-12-09 19:21:17,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6217 states to 6217 states and 14069 transitions. [2018-12-09 19:21:17,546 INFO L78 Accepts]: Start accepts. Automaton has 6217 states and 14069 transitions. Word has length 93 [2018-12-09 19:21:17,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:17,546 INFO L480 AbstractCegarLoop]: Abstraction has 6217 states and 14069 transitions. [2018-12-09 19:21:17,546 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:21:17,546 INFO L276 IsEmpty]: Start isEmpty. Operand 6217 states and 14069 transitions. [2018-12-09 19:21:17,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-09 19:21:17,551 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:17,551 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:17,551 INFO L423 AbstractCegarLoop]: === Iteration 21 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:17,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:17,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1490824653, now seen corresponding path program 1 times [2018-12-09 19:21:17,551 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:17,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:17,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:17,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:17,553 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:17,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:17,601 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:17,601 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 19:21:17,601 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:17,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 19:21:17,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 19:21:17,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 19:21:17,602 INFO L87 Difference]: Start difference. First operand 6217 states and 14069 transitions. Second operand 5 states. [2018-12-09 19:21:17,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:17,854 INFO L93 Difference]: Finished difference Result 9852 states and 22424 transitions. [2018-12-09 19:21:17,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 19:21:17,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2018-12-09 19:21:17,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:17,860 INFO L225 Difference]: With dead ends: 9852 [2018-12-09 19:21:17,860 INFO L226 Difference]: Without dead ends: 9774 [2018-12-09 19:21:17,860 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:21:17,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9774 states. [2018-12-09 19:21:17,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9774 to 7358. [2018-12-09 19:21:17,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7358 states. [2018-12-09 19:21:17,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7358 states to 7358 states and 16716 transitions. [2018-12-09 19:21:17,923 INFO L78 Accepts]: Start accepts. Automaton has 7358 states and 16716 transitions. Word has length 93 [2018-12-09 19:21:17,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:17,923 INFO L480 AbstractCegarLoop]: Abstraction has 7358 states and 16716 transitions. [2018-12-09 19:21:17,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 19:21:17,923 INFO L276 IsEmpty]: Start isEmpty. Operand 7358 states and 16716 transitions. [2018-12-09 19:21:17,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-09 19:21:17,929 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:17,929 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:17,929 INFO L423 AbstractCegarLoop]: === Iteration 22 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:17,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:17,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1559378162, now seen corresponding path program 1 times [2018-12-09 19:21:17,929 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:17,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:17,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:17,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:17,930 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:17,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:17,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:17,977 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:17,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:21:17,977 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:17,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:21:17,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:21:17,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:21:17,978 INFO L87 Difference]: Start difference. First operand 7358 states and 16716 transitions. Second operand 6 states. [2018-12-09 19:21:18,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:18,181 INFO L93 Difference]: Finished difference Result 9349 states and 21078 transitions. [2018-12-09 19:21:18,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 19:21:18,181 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-12-09 19:21:18,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:18,188 INFO L225 Difference]: With dead ends: 9349 [2018-12-09 19:21:18,188 INFO L226 Difference]: Without dead ends: 9270 [2018-12-09 19:21:18,188 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-12-09 19:21:18,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9270 states. [2018-12-09 19:21:18,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9270 to 6928. [2018-12-09 19:21:18,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6928 states. [2018-12-09 19:21:18,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6928 states to 6928 states and 15763 transitions. [2018-12-09 19:21:18,249 INFO L78 Accepts]: Start accepts. Automaton has 6928 states and 15763 transitions. Word has length 93 [2018-12-09 19:21:18,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:18,249 INFO L480 AbstractCegarLoop]: Abstraction has 6928 states and 15763 transitions. [2018-12-09 19:21:18,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:21:18,249 INFO L276 IsEmpty]: Start isEmpty. Operand 6928 states and 15763 transitions. [2018-12-09 19:21:18,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-09 19:21:18,254 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:18,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:18,254 INFO L423 AbstractCegarLoop]: === Iteration 23 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:18,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:18,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1497612213, now seen corresponding path program 1 times [2018-12-09 19:21:18,254 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:18,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:18,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:18,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:18,255 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:18,341 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:18,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 19:21:18,342 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:18,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 19:21:18,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 19:21:18,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:21:18,342 INFO L87 Difference]: Start difference. First operand 6928 states and 15763 transitions. Second operand 9 states. [2018-12-09 19:21:18,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:18,691 INFO L93 Difference]: Finished difference Result 9639 states and 21910 transitions. [2018-12-09 19:21:18,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-12-09 19:21:18,691 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2018-12-09 19:21:18,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:18,697 INFO L225 Difference]: With dead ends: 9639 [2018-12-09 19:21:18,697 INFO L226 Difference]: Without dead ends: 9639 [2018-12-09 19:21:18,698 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2018-12-09 19:21:18,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9639 states. [2018-12-09 19:21:18,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9639 to 8631. [2018-12-09 19:21:18,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8631 states. [2018-12-09 19:21:18,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8631 states to 8631 states and 19631 transitions. [2018-12-09 19:21:18,773 INFO L78 Accepts]: Start accepts. Automaton has 8631 states and 19631 transitions. Word has length 93 [2018-12-09 19:21:18,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:18,774 INFO L480 AbstractCegarLoop]: Abstraction has 8631 states and 19631 transitions. [2018-12-09 19:21:18,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 19:21:18,774 INFO L276 IsEmpty]: Start isEmpty. Operand 8631 states and 19631 transitions. [2018-12-09 19:21:18,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-09 19:21:18,779 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:18,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:18,779 INFO L423 AbstractCegarLoop]: === Iteration 24 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:18,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:18,780 INFO L82 PathProgramCache]: Analyzing trace with hash -989900620, now seen corresponding path program 1 times [2018-12-09 19:21:18,780 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:18,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:18,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:18,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:18,781 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:18,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:18,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 19:21:18,808 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:18,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 19:21:18,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 19:21:18,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:18,808 INFO L87 Difference]: Start difference. First operand 8631 states and 19631 transitions. Second operand 4 states. [2018-12-09 19:21:18,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:18,876 INFO L93 Difference]: Finished difference Result 8903 states and 20327 transitions. [2018-12-09 19:21:18,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 19:21:18,876 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2018-12-09 19:21:18,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:18,884 INFO L225 Difference]: With dead ends: 8903 [2018-12-09 19:21:18,884 INFO L226 Difference]: Without dead ends: 8871 [2018-12-09 19:21:18,885 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 19:21:18,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8871 states. [2018-12-09 19:21:18,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8871 to 8727. [2018-12-09 19:21:18,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8727 states. [2018-12-09 19:21:18,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8727 states to 8727 states and 19887 transitions. [2018-12-09 19:21:18,953 INFO L78 Accepts]: Start accepts. Automaton has 8727 states and 19887 transitions. Word has length 93 [2018-12-09 19:21:18,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:18,953 INFO L480 AbstractCegarLoop]: Abstraction has 8727 states and 19887 transitions. [2018-12-09 19:21:18,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 19:21:18,953 INFO L276 IsEmpty]: Start isEmpty. Operand 8727 states and 19887 transitions. [2018-12-09 19:21:18,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-09 19:21:18,959 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:18,960 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:18,960 INFO L423 AbstractCegarLoop]: === Iteration 25 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:18,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:18,960 INFO L82 PathProgramCache]: Analyzing trace with hash -299339146, now seen corresponding path program 1 times [2018-12-09 19:21:18,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:18,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:18,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:18,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:18,961 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:19,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:19,022 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:19,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 19:21:19,023 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:19,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 19:21:19,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 19:21:19,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:21:19,023 INFO L87 Difference]: Start difference. First operand 8727 states and 19887 transitions. Second operand 8 states. [2018-12-09 19:21:19,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:19,346 INFO L93 Difference]: Finished difference Result 13198 states and 30502 transitions. [2018-12-09 19:21:19,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 19:21:19,346 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2018-12-09 19:21:19,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:19,355 INFO L225 Difference]: With dead ends: 13198 [2018-12-09 19:21:19,355 INFO L226 Difference]: Without dead ends: 13198 [2018-12-09 19:21:19,355 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-12-09 19:21:19,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13198 states. [2018-12-09 19:21:19,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13198 to 9365. [2018-12-09 19:21:19,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9365 states. [2018-12-09 19:21:19,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9365 states to 9365 states and 21554 transitions. [2018-12-09 19:21:19,442 INFO L78 Accepts]: Start accepts. Automaton has 9365 states and 21554 transitions. Word has length 93 [2018-12-09 19:21:19,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:19,442 INFO L480 AbstractCegarLoop]: Abstraction has 9365 states and 21554 transitions. [2018-12-09 19:21:19,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 19:21:19,442 INFO L276 IsEmpty]: Start isEmpty. Operand 9365 states and 21554 transitions. [2018-12-09 19:21:19,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-09 19:21:19,449 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:19,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:19,450 INFO L423 AbstractCegarLoop]: === Iteration 26 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:19,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:19,450 INFO L82 PathProgramCache]: Analyzing trace with hash 588164535, now seen corresponding path program 1 times [2018-12-09 19:21:19,450 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:19,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:19,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:19,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:19,451 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:19,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:19,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:19,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:19,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 19:21:19,489 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:19,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 19:21:19,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 19:21:19,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:21:19,490 INFO L87 Difference]: Start difference. First operand 9365 states and 21554 transitions. Second operand 3 states. [2018-12-09 19:21:19,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:19,514 INFO L93 Difference]: Finished difference Result 9013 states and 20482 transitions. [2018-12-09 19:21:19,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 19:21:19,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2018-12-09 19:21:19,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:19,521 INFO L225 Difference]: With dead ends: 9013 [2018-12-09 19:21:19,521 INFO L226 Difference]: Without dead ends: 8981 [2018-12-09 19:21:19,521 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 19:21:19,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8981 states. [2018-12-09 19:21:19,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8981 to 7523. [2018-12-09 19:21:19,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7523 states. [2018-12-09 19:21:19,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7523 states to 7523 states and 17031 transitions. [2018-12-09 19:21:19,585 INFO L78 Accepts]: Start accepts. Automaton has 7523 states and 17031 transitions. Word has length 93 [2018-12-09 19:21:19,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:19,586 INFO L480 AbstractCegarLoop]: Abstraction has 7523 states and 17031 transitions. [2018-12-09 19:21:19,586 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 19:21:19,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7523 states and 17031 transitions. [2018-12-09 19:21:19,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-09 19:21:19,592 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:19,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:19,592 INFO L423 AbstractCegarLoop]: === Iteration 27 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:19,592 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:19,592 INFO L82 PathProgramCache]: Analyzing trace with hash -360597677, now seen corresponding path program 1 times [2018-12-09 19:21:19,592 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:19,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:19,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:19,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:19,594 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:19,724 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:19,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-09 19:21:19,724 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:19,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 19:21:19,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 19:21:19,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:21:19,725 INFO L87 Difference]: Start difference. First operand 7523 states and 17031 transitions. Second operand 11 states. [2018-12-09 19:21:21,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:21,093 INFO L93 Difference]: Finished difference Result 10123 states and 22667 transitions. [2018-12-09 19:21:21,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-12-09 19:21:21,093 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 95 [2018-12-09 19:21:21,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:21,104 INFO L225 Difference]: With dead ends: 10123 [2018-12-09 19:21:21,105 INFO L226 Difference]: Without dead ends: 10123 [2018-12-09 19:21:21,105 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2018-12-09 19:21:21,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10123 states. [2018-12-09 19:21:21,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10123 to 8899. [2018-12-09 19:21:21,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8899 states. [2018-12-09 19:21:21,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8899 states to 8899 states and 20022 transitions. [2018-12-09 19:21:21,184 INFO L78 Accepts]: Start accepts. Automaton has 8899 states and 20022 transitions. Word has length 95 [2018-12-09 19:21:21,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:21,184 INFO L480 AbstractCegarLoop]: Abstraction has 8899 states and 20022 transitions. [2018-12-09 19:21:21,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 19:21:21,184 INFO L276 IsEmpty]: Start isEmpty. Operand 8899 states and 20022 transitions. [2018-12-09 19:21:21,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-09 19:21:21,190 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:21,191 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:21,191 INFO L423 AbstractCegarLoop]: === Iteration 28 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:21,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:21,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1550303339, now seen corresponding path program 1 times [2018-12-09 19:21:21,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:21,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:21,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:21,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:21,193 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:21,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:21,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:21,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 19:21:21,305 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:21,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 19:21:21,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 19:21:21,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:21:21,306 INFO L87 Difference]: Start difference. First operand 8899 states and 20022 transitions. Second operand 9 states. [2018-12-09 19:21:21,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:21,646 INFO L93 Difference]: Finished difference Result 11077 states and 24615 transitions. [2018-12-09 19:21:21,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-09 19:21:21,647 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2018-12-09 19:21:21,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:21,654 INFO L225 Difference]: With dead ends: 11077 [2018-12-09 19:21:21,654 INFO L226 Difference]: Without dead ends: 11077 [2018-12-09 19:21:21,655 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=320, Unknown=0, NotChecked=0, Total=420 [2018-12-09 19:21:21,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11077 states. [2018-12-09 19:21:21,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11077 to 9328. [2018-12-09 19:21:21,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9328 states. [2018-12-09 19:21:21,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9328 states to 9328 states and 20940 transitions. [2018-12-09 19:21:21,739 INFO L78 Accepts]: Start accepts. Automaton has 9328 states and 20940 transitions. Word has length 95 [2018-12-09 19:21:21,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:21,739 INFO L480 AbstractCegarLoop]: Abstraction has 9328 states and 20940 transitions. [2018-12-09 19:21:21,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 19:21:21,739 INFO L276 IsEmpty]: Start isEmpty. Operand 9328 states and 20940 transitions. [2018-12-09 19:21:21,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-09 19:21:21,746 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:21,746 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:21,747 INFO L423 AbstractCegarLoop]: === Iteration 29 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:21,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:21,747 INFO L82 PathProgramCache]: Analyzing trace with hash 2068511189, now seen corresponding path program 1 times [2018-12-09 19:21:21,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:21,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:21,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:21,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:21,749 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:21,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:21,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:21,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 19:21:21,849 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:21,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 19:21:21,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 19:21:21,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-12-09 19:21:21,849 INFO L87 Difference]: Start difference. First operand 9328 states and 20940 transitions. Second operand 9 states. [2018-12-09 19:21:22,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:22,119 INFO L93 Difference]: Finished difference Result 10252 states and 22965 transitions. [2018-12-09 19:21:22,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-12-09 19:21:22,120 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2018-12-09 19:21:22,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:22,126 INFO L225 Difference]: With dead ends: 10252 [2018-12-09 19:21:22,126 INFO L226 Difference]: Without dead ends: 10252 [2018-12-09 19:21:22,126 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2018-12-09 19:21:22,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10252 states. [2018-12-09 19:21:22,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10252 to 7051. [2018-12-09 19:21:22,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7051 states. [2018-12-09 19:21:22,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7051 states to 7051 states and 15813 transitions. [2018-12-09 19:21:22,202 INFO L78 Accepts]: Start accepts. Automaton has 7051 states and 15813 transitions. Word has length 95 [2018-12-09 19:21:22,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:22,202 INFO L480 AbstractCegarLoop]: Abstraction has 7051 states and 15813 transitions. [2018-12-09 19:21:22,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 19:21:22,202 INFO L276 IsEmpty]: Start isEmpty. Operand 7051 states and 15813 transitions. [2018-12-09 19:21:22,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-09 19:21:22,209 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:22,209 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:22,209 INFO L423 AbstractCegarLoop]: === Iteration 30 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:22,209 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:22,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1338952426, now seen corresponding path program 1 times [2018-12-09 19:21:22,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:22,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:22,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:22,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:22,211 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:22,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:22,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:22,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-09 19:21:22,322 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:22,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 19:21:22,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 19:21:22,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:21:22,323 INFO L87 Difference]: Start difference. First operand 7051 states and 15813 transitions. Second operand 11 states. [2018-12-09 19:21:23,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:23,470 INFO L93 Difference]: Finished difference Result 13327 states and 30077 transitions. [2018-12-09 19:21:23,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-09 19:21:23,471 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 95 [2018-12-09 19:21:23,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:23,482 INFO L225 Difference]: With dead ends: 13327 [2018-12-09 19:21:23,482 INFO L226 Difference]: Without dead ends: 9210 [2018-12-09 19:21:23,483 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2018-12-09 19:21:23,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9210 states. [2018-12-09 19:21:23,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9210 to 6887. [2018-12-09 19:21:23,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6887 states. [2018-12-09 19:21:23,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6887 states to 6887 states and 15403 transitions. [2018-12-09 19:21:23,555 INFO L78 Accepts]: Start accepts. Automaton has 6887 states and 15403 transitions. Word has length 95 [2018-12-09 19:21:23,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:23,555 INFO L480 AbstractCegarLoop]: Abstraction has 6887 states and 15403 transitions. [2018-12-09 19:21:23,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 19:21:23,555 INFO L276 IsEmpty]: Start isEmpty. Operand 6887 states and 15403 transitions. [2018-12-09 19:21:23,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-09 19:21:23,576 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:23,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:23,577 INFO L423 AbstractCegarLoop]: === Iteration 31 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:23,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:23,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1071746382, now seen corresponding path program 1 times [2018-12-09 19:21:23,577 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:23,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:23,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:23,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:23,578 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:23,652 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:23,652 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:21:23,652 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:23,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:21:23,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:21:23,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:21:23,653 INFO L87 Difference]: Start difference. First operand 6887 states and 15403 transitions. Second operand 6 states. [2018-12-09 19:21:23,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:23,737 INFO L93 Difference]: Finished difference Result 7785 states and 17167 transitions. [2018-12-09 19:21:23,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:21:23,738 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2018-12-09 19:21:23,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:23,742 INFO L225 Difference]: With dead ends: 7785 [2018-12-09 19:21:23,742 INFO L226 Difference]: Without dead ends: 7728 [2018-12-09 19:21:23,743 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:21:23,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7728 states. [2018-12-09 19:21:23,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7728 to 6910. [2018-12-09 19:21:23,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6910 states. [2018-12-09 19:21:23,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6910 states to 6910 states and 15291 transitions. [2018-12-09 19:21:23,796 INFO L78 Accepts]: Start accepts. Automaton has 6910 states and 15291 transitions. Word has length 95 [2018-12-09 19:21:23,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:23,796 INFO L480 AbstractCegarLoop]: Abstraction has 6910 states and 15291 transitions. [2018-12-09 19:21:23,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:21:23,796 INFO L276 IsEmpty]: Start isEmpty. Operand 6910 states and 15291 transitions. [2018-12-09 19:21:23,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-09 19:21:23,801 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:23,801 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:23,801 INFO L423 AbstractCegarLoop]: === Iteration 32 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:23,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:23,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1408217134, now seen corresponding path program 2 times [2018-12-09 19:21:23,801 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:23,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:23,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:23,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:23,802 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:23,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:23,871 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:23,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:21:23,872 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:23,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:21:23,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:21:23,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:21:23,872 INFO L87 Difference]: Start difference. First operand 6910 states and 15291 transitions. Second operand 7 states. [2018-12-09 19:21:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:24,105 INFO L93 Difference]: Finished difference Result 9182 states and 19987 transitions. [2018-12-09 19:21:24,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 19:21:24,105 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2018-12-09 19:21:24,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:24,110 INFO L225 Difference]: With dead ends: 9182 [2018-12-09 19:21:24,110 INFO L226 Difference]: Without dead ends: 9182 [2018-12-09 19:21:24,111 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-12-09 19:21:24,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9182 states. [2018-12-09 19:21:24,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9182 to 7505. [2018-12-09 19:21:24,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7505 states. [2018-12-09 19:21:24,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7505 states to 7505 states and 16598 transitions. [2018-12-09 19:21:24,169 INFO L78 Accepts]: Start accepts. Automaton has 7505 states and 16598 transitions. Word has length 95 [2018-12-09 19:21:24,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:24,170 INFO L480 AbstractCegarLoop]: Abstraction has 7505 states and 16598 transitions. [2018-12-09 19:21:24,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:21:24,170 INFO L276 IsEmpty]: Start isEmpty. Operand 7505 states and 16598 transitions. [2018-12-09 19:21:24,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-09 19:21:24,174 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:24,175 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:24,175 INFO L423 AbstractCegarLoop]: === Iteration 33 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:24,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:24,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1196866221, now seen corresponding path program 1 times [2018-12-09 19:21:24,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:24,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:24,176 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 19:21:24,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:24,176 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:24,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:24,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:24,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:21:24,238 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:24,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:21:24,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:21:24,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:21:24,239 INFO L87 Difference]: Start difference. First operand 7505 states and 16598 transitions. Second operand 6 states. [2018-12-09 19:21:24,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:24,338 INFO L93 Difference]: Finished difference Result 7753 states and 17098 transitions. [2018-12-09 19:21:24,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:21:24,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2018-12-09 19:21:24,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:24,344 INFO L225 Difference]: With dead ends: 7753 [2018-12-09 19:21:24,344 INFO L226 Difference]: Without dead ends: 7753 [2018-12-09 19:21:24,344 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-12-09 19:21:24,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7753 states. [2018-12-09 19:21:24,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7753 to 7382. [2018-12-09 19:21:24,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7382 states. [2018-12-09 19:21:24,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7382 states to 7382 states and 16327 transitions. [2018-12-09 19:21:24,401 INFO L78 Accepts]: Start accepts. Automaton has 7382 states and 16327 transitions. Word has length 95 [2018-12-09 19:21:24,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:24,402 INFO L480 AbstractCegarLoop]: Abstraction has 7382 states and 16327 transitions. [2018-12-09 19:21:24,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:21:24,402 INFO L276 IsEmpty]: Start isEmpty. Operand 7382 states and 16327 transitions. [2018-12-09 19:21:24,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-09 19:21:24,407 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:24,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:24,407 INFO L423 AbstractCegarLoop]: === Iteration 34 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:24,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:24,407 INFO L82 PathProgramCache]: Analyzing trace with hash -741980621, now seen corresponding path program 2 times [2018-12-09 19:21:24,407 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:24,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:24,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:21:24,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:24,408 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:24,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:21:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:21:24,490 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:21:24,490 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:21:24,490 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:21:24,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:21:24,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:21:24,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:21:24,491 INFO L87 Difference]: Start difference. First operand 7382 states and 16327 transitions. Second operand 7 states. [2018-12-09 19:21:24,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:21:24,585 INFO L93 Difference]: Finished difference Result 9227 states and 20407 transitions. [2018-12-09 19:21:24,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:21:24,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 95 [2018-12-09 19:21:24,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:21:24,591 INFO L225 Difference]: With dead ends: 9227 [2018-12-09 19:21:24,591 INFO L226 Difference]: Without dead ends: 9227 [2018-12-09 19:21:24,591 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:21:24,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9227 states. [2018-12-09 19:21:24,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9227 to 6593. [2018-12-09 19:21:24,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6593 states. [2018-12-09 19:21:24,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6593 states to 6593 states and 14493 transitions. [2018-12-09 19:21:24,646 INFO L78 Accepts]: Start accepts. Automaton has 6593 states and 14493 transitions. Word has length 95 [2018-12-09 19:21:24,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:21:24,646 INFO L480 AbstractCegarLoop]: Abstraction has 6593 states and 14493 transitions. [2018-12-09 19:21:24,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:21:24,647 INFO L276 IsEmpty]: Start isEmpty. Operand 6593 states and 14493 transitions. [2018-12-09 19:21:24,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-12-09 19:21:24,651 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:21:24,651 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:21:24,651 INFO L423 AbstractCegarLoop]: === Iteration 35 === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P0Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:21:24,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:21:24,651 INFO L82 PathProgramCache]: Analyzing trace with hash -530629708, now seen corresponding path program 2 times [2018-12-09 19:21:24,651 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:21:24,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:24,652 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 19:21:24,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:21:24,652 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:21:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:21:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:21:24,698 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:21:24,773 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-09 19:21:24,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:21:24 BasicIcfg [2018-12-09 19:21:24,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:21:24,774 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:21:24,774 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:21:24,775 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:21:24,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:21:06" (3/4) ... [2018-12-09 19:21:24,777 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 19:21:24,847 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e81a1280-d029-46dd-92c8-e1d631a3946f/bin-2019/utaipan/witness.graphml [2018-12-09 19:21:24,847 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:21:24,847 INFO L168 Benchmark]: Toolchain (without parser) took 19136.62 ms. Allocated memory was 1.0 GB in the beginning and 2.6 GB in the end (delta: 1.6 GB). Free memory was 945.9 MB in the beginning and 1.5 GB in the end (delta: -594.2 MB). Peak memory consumption was 956.6 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:24,848 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:21:24,848 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -132.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:24,849 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:21:24,849 INFO L168 Benchmark]: Boogie Preprocessor took 21.66 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: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:24,849 INFO L168 Benchmark]: RCFGBuilder took 335.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.0 MB). Peak memory consumption was 54.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:24,849 INFO L168 Benchmark]: TraceAbstraction took 18299.28 ms. Allocated memory was 1.1 GB in the beginning and 2.6 GB in the end (delta: 1.4 GB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -583.7 MB). Peak memory consumption was 862.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:24,849 INFO L168 Benchmark]: Witness Printer took 72.58 ms. Allocated memory is still 2.6 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:21:24,850 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 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 363.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -132.1 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.47 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.66 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: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 335.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.0 MB). Peak memory consumption was 54.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18299.28 ms. Allocated memory was 1.1 GB in the beginning and 2.6 GB in the end (delta: 1.4 GB). Free memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: -583.7 MB). Peak memory consumption was 862.8 MB. Max. memory is 11.5 GB. * Witness Printer took 72.58 ms. Allocated memory is still 2.6 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L671] -1 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L673] -1 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L675] -1 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0] [L676] -1 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0] [L677] -1 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L679] -1 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L681] -1 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L682] -1 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L683] -1 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L684] -1 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L685] -1 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L686] -1 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L687] -1 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0] [L688] -1 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L689] -1 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L690] -1 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0] [L691] -1 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L692] -1 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L693] -1 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L694] -1 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L695] -1 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L696] -1 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L697] -1 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L770] -1 pthread_t t1559; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L771] FCALL, FORK -1 pthread_create(&t1559, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L701] 0 y$w_buff1 = y$w_buff0 [L702] 0 y$w_buff0 = 1 [L703] 0 y$w_buff1_used = y$w_buff0_used [L704] 0 y$w_buff0_used = (_Bool)1 [L4] COND FALSE 0 !(!expression) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L772] -1 pthread_t t1560; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L773] FCALL, FORK -1 pthread_create(&t1560, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L706] 0 y$r_buff1_thd0 = y$r_buff0_thd0 [L707] 0 y$r_buff1_thd1 = y$r_buff0_thd1 [L708] 0 y$r_buff1_thd2 = y$r_buff0_thd2 [L709] 0 y$r_buff0_thd1 = (_Bool)1 [L712] 0 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L715] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L729] 1 x = 1 [L732] 1 weak$$choice0 = __VERIFIER_nondet_pointer() [L733] 1 weak$$choice2 = __VERIFIER_nondet_pointer() [L734] 1 y$flush_delayed = weak$$choice2 [L735] 1 y$mem_tmp = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L736] EXPR 1 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) VAL [!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1)=0, __unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L736] 1 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L737] EXPR 1 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0))=1, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L737] 1 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L738] EXPR 1 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1))=0, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L738] 1 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L739] EXPR 1 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used))=1, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L739] 1 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L740] EXPR 1 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))=0, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L740] 1 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L741] EXPR 1 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2))=0, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L741] 1 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L742] EXPR 1 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0))=0, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L742] 1 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L743] 1 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L744] EXPR 1 y$flush_delayed ? y$mem_tmp : y VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=1, y$flush_delayed ? y$mem_tmp : y=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L715] 0 y = y$w_buff0_used && y$r_buff0_thd1 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd1 ? y$w_buff1 : y) [L744] 1 y = y$flush_delayed ? y$mem_tmp : y [L745] 1 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L716] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0] [L716] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$w_buff0_used [L717] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L717] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$w_buff1_used [L718] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L718] 0 y$r_buff0_thd1 = y$w_buff0_used && y$r_buff0_thd1 ? (_Bool)0 : y$r_buff0_thd1 [L719] EXPR 0 y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L719] 0 y$r_buff1_thd1 = y$w_buff0_used && y$r_buff0_thd1 || y$w_buff1_used && y$r_buff1_thd1 ? (_Bool)0 : y$r_buff1_thd1 [L722] 0 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L748] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L748] EXPR 1 y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y=0] [L748] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y)=0, y$w_buff1=0, y$w_buff1_used=0, y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y=0] [L748] 1 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L749] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L749] 1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L750] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used=0, y$w_buff1=0, y$w_buff1_used=0] [L750] 1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L751] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2=0, y$w_buff1=0, y$w_buff1_used=0] [L751] 1 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L752] EXPR 1 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2=0, y$w_buff1=0, y$w_buff1_used=0] [L752] 1 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L755] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L775] -1 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L779] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L779] EXPR -1 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L779] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L779] -1 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L780] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L780] -1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L781] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L781] -1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L782] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L782] -1 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L783] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L783] -1 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L786] -1 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0) VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L4] COND TRUE -1 !expression VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L4] -1 __VERIFIER_error() VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=1, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 222 locations, 3 error locations. UNSAFE Result, 18.2s OverallTime, 35 OverallIterations, 1 TraceHistogramMax, 9.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8637 SDtfs, 9922 SDslu, 22217 SDs, 0 SdLazy, 10165 SolverSat, 493 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 398 GetRequests, 94 SyntacticMatches, 43 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34806occurred 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: 4.0s AutomataMinimizationTime, 34 MinimizatonAttempts, 79310 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 2727 NumberOfCodeBlocks, 2727 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 2598 ConstructedInterpolants, 0 QuantifiedInterpolants, 627355 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 34 InterpolantComputations, 34 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...