./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe034_pso.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_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe034_pso.oepc_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/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 f0e9abc953cd782ca10fbe0e8a4add6cfebaae52 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:17:00,232 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 17:17:00,233 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 17:17:00,241 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 17:17:00,241 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 17:17:00,242 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 17:17:00,242 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 17:17:00,243 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 17:17:00,244 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 17:17:00,245 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 17:17:00,246 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 17:17:00,246 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 17:17:00,246 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 17:17:00,247 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 17:17:00,248 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 17:17:00,248 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 17:17:00,249 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 17:17:00,250 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 17:17:00,252 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 17:17:00,253 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 17:17:00,254 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 17:17:00,254 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 17:17:00,256 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 17:17:00,256 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 17:17:00,256 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 17:17:00,257 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 17:17:00,258 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 17:17:00,258 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 17:17:00,259 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 17:17:00,260 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 17:17:00,260 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 17:17:00,260 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 17:17:00,260 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 17:17:00,261 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 17:17:00,261 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 17:17:00,262 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 17:17:00,262 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 17:17:00,272 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 17:17:00,272 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 17:17:00,272 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 17:17:00,273 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 17:17:00,273 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 17:17:00,273 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 17:17:00,273 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 17:17:00,273 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 17:17:00,273 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 17:17:00,273 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 17:17:00,273 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 17:17:00,273 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 17:17:00,274 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 17:17:00,274 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 17:17:00,274 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 17:17:00,274 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 17:17:00,274 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 17:17:00,275 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 17:17:00,275 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 17:17:00,275 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 17:17:00,275 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 17:17:00,275 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 17:17:00,275 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 17:17:00,275 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 17:17:00,276 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 17:17:00,276 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 17:17:00,276 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 17:17:00,276 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 17:17:00,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 17:17:00,276 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 17:17:00,276 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 17:17:00,276 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 17:17:00,276 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 17:17:00,276 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 17:17:00,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 17:17:00,277 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 17:17:00,277 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_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/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 -> f0e9abc953cd782ca10fbe0e8a4add6cfebaae52 [2018-12-09 17:17:00,298 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 17:17:00,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 17:17:00,307 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 17:17:00,308 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 17:17:00,308 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 17:17:00,308 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/bin-2019/utaipan/../../sv-benchmarks/c/pthread-wmm/safe034_pso.oepc_false-unreach-call.i [2018-12-09 17:17:00,342 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/bin-2019/utaipan/data/a77a9c5d0/8ec490f25bfc42e68bc5351f3084d1d2/FLAGcc3f92161 [2018-12-09 17:17:00,807 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 17:17:00,807 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/sv-benchmarks/c/pthread-wmm/safe034_pso.oepc_false-unreach-call.i [2018-12-09 17:17:00,815 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/bin-2019/utaipan/data/a77a9c5d0/8ec490f25bfc42e68bc5351f3084d1d2/FLAGcc3f92161 [2018-12-09 17:17:00,824 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/bin-2019/utaipan/data/a77a9c5d0/8ec490f25bfc42e68bc5351f3084d1d2 [2018-12-09 17:17:00,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 17:17:00,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 17:17:00,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 17:17:00,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 17:17:00,829 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 17:17:00,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:17:00" (1/1) ... [2018-12-09 17:17:00,832 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 05:17:00, skipping insertion in model container [2018-12-09 17:17:00,832 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:17:00" (1/1) ... [2018-12-09 17:17:00,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 17:17:00,857 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 17:17:01,034 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:17:01,042 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 17:17:01,123 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:17:01,153 INFO L195 MainTranslator]: Completed translation [2018-12-09 17:17:01,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:17:01 WrapperNode [2018-12-09 17:17:01,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 17:17:01,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 17:17:01,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 17:17:01,154 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 17:17:01,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:17:01" (1/1) ... [2018-12-09 17:17:01,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:17:01" (1/1) ... [2018-12-09 17:17:01,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 17:17:01,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 17:17:01,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 17:17:01,186 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 17:17:01,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:17:01" (1/1) ... [2018-12-09 17:17:01,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:17:01" (1/1) ... [2018-12-09 17:17:01,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:17:01" (1/1) ... [2018-12-09 17:17:01,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:17:01" (1/1) ... [2018-12-09 17:17:01,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:17:01" (1/1) ... [2018-12-09 17:17:01,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:17:01" (1/1) ... [2018-12-09 17:17:01,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:17:01" (1/1) ... [2018-12-09 17:17:01,205 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 17:17:01,206 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 17:17:01,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 17:17:01,206 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 17:17:01,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:17:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/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 17:17:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 17:17:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 17:17:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-12-09 17:17:01,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 17:17:01,240 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-12-09 17:17:01,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-12-09 17:17:01,240 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-12-09 17:17:01,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-12-09 17:17:01,240 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-12-09 17:17:01,240 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-12-09 17:17:01,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-12-09 17:17:01,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 17:17:01,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 17:17:01,241 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 17:17:01,531 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 17:17:01,531 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 17:17:01,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:17:01 BoogieIcfgContainer [2018-12-09 17:17:01,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 17:17:01,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 17:17:01,532 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 17:17:01,534 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 17:17:01,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:17:00" (1/3) ... [2018-12-09 17:17:01,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157f99b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:17:01, skipping insertion in model container [2018-12-09 17:17:01,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:17:01" (2/3) ... [2018-12-09 17:17:01,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157f99b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:17:01, skipping insertion in model container [2018-12-09 17:17:01,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:17:01" (3/3) ... [2018-12-09 17:17:01,535 INFO L112 eAbstractionObserver]: Analyzing ICFG safe034_pso.oepc_false-unreach-call.i [2018-12-09 17:17:01,558 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,558 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,558 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,558 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,559 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,559 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,559 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,559 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,559 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,559 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,559 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,560 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,560 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,560 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,560 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,560 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,560 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,560 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,560 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,560 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,560 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,560 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,560 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,561 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,562 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,562 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,562 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,562 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,562 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,562 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,562 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,562 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,562 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,562 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,563 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,563 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,563 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,563 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,563 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,563 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,563 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,563 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,563 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,564 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,565 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,566 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,566 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,566 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,566 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,566 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,566 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,566 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,566 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,566 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,566 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,567 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,567 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,567 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,567 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,567 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,567 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,567 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,567 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,567 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,567 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,567 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet27.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet27.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,568 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,569 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet27.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,569 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet27.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,569 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,569 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,569 WARN L317 ript$VariableManager]: TermVariabe Thread2_P2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,569 WARN L317 ript$VariableManager]: TermVariabe Thread2_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,569 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,569 WARN L317 ript$VariableManager]: TermVariabe Thread2_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,569 WARN L317 ript$VariableManager]: TermVariabe Thread2_P2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,570 WARN L317 ript$VariableManager]: TermVariabe Thread2_P2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,570 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,570 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,570 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,570 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,570 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,570 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,570 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,570 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,570 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,570 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,571 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,572 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,572 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,572 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,572 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet34.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,572 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet34.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,572 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,572 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,572 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet34.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,572 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P2_#t~nondet34.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 17:17:01,579 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-09 17:17:01,580 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 17:17:01,585 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-09 17:17:01,594 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-09 17:17:01,609 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 17:17:01,609 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 17:17:01,609 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 17:17:01,609 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 17:17:01,609 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 17:17:01,609 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 17:17:01,609 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 17:17:01,609 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 17:17:01,615 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 144places, 175 transitions [2018-12-09 17:17:23,058 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 149043 states. [2018-12-09 17:17:23,059 INFO L276 IsEmpty]: Start isEmpty. Operand 149043 states. [2018-12-09 17:17:23,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-09 17:17:23,067 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:17:23,068 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] [2018-12-09 17:17:23,069 INFO L423 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:17:23,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:17:23,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1284724798, now seen corresponding path program 1 times [2018-12-09 17:17:23,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:17:23,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:17:23,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:17:23,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:17:23,109 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:17:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:17:23,211 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 17:17:23,213 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:17:23,213 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 17:17:23,213 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:17:23,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 17:17:23,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 17:17:23,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 17:17:23,230 INFO L87 Difference]: Start difference. First operand 149043 states. Second operand 4 states. [2018-12-09 17:17:24,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:17:24,766 INFO L93 Difference]: Finished difference Result 257063 states and 1188602 transitions. [2018-12-09 17:17:24,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 17:17:24,767 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-12-09 17:17:24,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:17:25,494 INFO L225 Difference]: With dead ends: 257063 [2018-12-09 17:17:25,495 INFO L226 Difference]: Without dead ends: 174813 [2018-12-09 17:17:25,496 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 17:17:28,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174813 states. [2018-12-09 17:17:30,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174813 to 110553. [2018-12-09 17:17:30,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110553 states. [2018-12-09 17:17:30,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110553 states to 110553 states and 511484 transitions. [2018-12-09 17:17:30,802 INFO L78 Accepts]: Start accepts. Automaton has 110553 states and 511484 transitions. Word has length 44 [2018-12-09 17:17:30,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:17:30,803 INFO L480 AbstractCegarLoop]: Abstraction has 110553 states and 511484 transitions. [2018-12-09 17:17:30,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 17:17:30,803 INFO L276 IsEmpty]: Start isEmpty. Operand 110553 states and 511484 transitions. [2018-12-09 17:17:30,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 17:17:30,814 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:17:30,814 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 17:17:30,814 INFO L423 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:17:30,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:17:30,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1885719038, now seen corresponding path program 1 times [2018-12-09 17:17:30,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:17:30,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:17:30,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:17:30,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:17:30,818 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:17:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:17:30,866 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 17:17:30,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:17:30,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 17:17:30,867 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:17:30,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 17:17:30,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 17:17:30,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 17:17:30,868 INFO L87 Difference]: Start difference. First operand 110553 states and 511484 transitions. Second operand 5 states. [2018-12-09 17:17:32,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:17:32,211 INFO L93 Difference]: Finished difference Result 240603 states and 1068739 transitions. [2018-12-09 17:17:32,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 17:17:32,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2018-12-09 17:17:32,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:17:32,885 INFO L225 Difference]: With dead ends: 240603 [2018-12-09 17:17:32,885 INFO L226 Difference]: Without dead ends: 237053 [2018-12-09 17:17:32,886 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 17:17:33,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237053 states. [2018-12-09 17:17:36,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237053 to 160433. [2018-12-09 17:17:36,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160433 states. [2018-12-09 17:17:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160433 states to 160433 states and 716928 transitions. [2018-12-09 17:17:40,032 INFO L78 Accepts]: Start accepts. Automaton has 160433 states and 716928 transitions. Word has length 52 [2018-12-09 17:17:40,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:17:40,032 INFO L480 AbstractCegarLoop]: Abstraction has 160433 states and 716928 transitions. [2018-12-09 17:17:40,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 17:17:40,033 INFO L276 IsEmpty]: Start isEmpty. Operand 160433 states and 716928 transitions. [2018-12-09 17:17:40,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-09 17:17:40,042 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:17:40,042 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] [2018-12-09 17:17:40,043 INFO L423 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:17:40,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:17:40,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1570820033, now seen corresponding path program 1 times [2018-12-09 17:17:40,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:17:40,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:17:40,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:17:40,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:17:40,045 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:17:40,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:17:40,091 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 17:17:40,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:17:40,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 17:17:40,091 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:17:40,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 17:17:40,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 17:17:40,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 17:17:40,092 INFO L87 Difference]: Start difference. First operand 160433 states and 716928 transitions. Second operand 5 states. [2018-12-09 17:17:41,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:17:41,740 INFO L93 Difference]: Finished difference Result 317173 states and 1405285 transitions. [2018-12-09 17:17:41,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 17:17:41,741 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2018-12-09 17:17:41,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:17:42,624 INFO L225 Difference]: With dead ends: 317173 [2018-12-09 17:17:42,624 INFO L226 Difference]: Without dead ends: 314273 [2018-12-09 17:17:42,624 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 17:17:44,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314273 states. [2018-12-09 17:17:46,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314273 to 178273. [2018-12-09 17:17:46,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178273 states. [2018-12-09 17:17:47,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178273 states to 178273 states and 791490 transitions. [2018-12-09 17:17:47,823 INFO L78 Accepts]: Start accepts. Automaton has 178273 states and 791490 transitions. Word has length 53 [2018-12-09 17:17:47,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:17:47,824 INFO L480 AbstractCegarLoop]: Abstraction has 178273 states and 791490 transitions. [2018-12-09 17:17:47,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 17:17:47,824 INFO L276 IsEmpty]: Start isEmpty. Operand 178273 states and 791490 transitions. [2018-12-09 17:17:47,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-12-09 17:17:47,838 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:17:47,838 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] [2018-12-09 17:17:47,839 INFO L423 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:17:47,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:17:47,839 INFO L82 PathProgramCache]: Analyzing trace with hash 2068992963, now seen corresponding path program 1 times [2018-12-09 17:17:47,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:17:47,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:17:47,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:17:47,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:17:47,841 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:17:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:17:47,863 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 17:17:47,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:17:47,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 17:17:47,864 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:17:47,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 17:17:47,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 17:17:47,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 17:17:47,864 INFO L87 Difference]: Start difference. First operand 178273 states and 791490 transitions. Second operand 3 states. [2018-12-09 17:17:48,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:17:48,934 INFO L93 Difference]: Finished difference Result 231653 states and 1011274 transitions. [2018-12-09 17:17:48,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 17:17:48,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2018-12-09 17:17:48,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:17:49,553 INFO L225 Difference]: With dead ends: 231653 [2018-12-09 17:17:49,553 INFO L226 Difference]: Without dead ends: 231653 [2018-12-09 17:17:49,554 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 17:17:53,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231653 states. [2018-12-09 17:17:55,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231653 to 202938. [2018-12-09 17:17:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202938 states. [2018-12-09 17:17:56,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202938 states to 202938 states and 893562 transitions. [2018-12-09 17:17:56,325 INFO L78 Accepts]: Start accepts. Automaton has 202938 states and 893562 transitions. Word has length 55 [2018-12-09 17:17:56,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:17:56,326 INFO L480 AbstractCegarLoop]: Abstraction has 202938 states and 893562 transitions. [2018-12-09 17:17:56,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 17:17:56,326 INFO L276 IsEmpty]: Start isEmpty. Operand 202938 states and 893562 transitions. [2018-12-09 17:17:56,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-09 17:17:56,359 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:17:56,359 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] [2018-12-09 17:17:56,359 INFO L423 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:17:56,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:17:56,359 INFO L82 PathProgramCache]: Analyzing trace with hash -43565154, now seen corresponding path program 1 times [2018-12-09 17:17:56,359 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:17:56,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:17:56,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:17:56,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:17:56,361 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:17:56,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:17:56,420 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 17:17:56,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:17:56,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 17:17:56,420 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:17:56,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 17:17:56,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 17:17:56,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 17:17:56,421 INFO L87 Difference]: Start difference. First operand 202938 states and 893562 transitions. Second operand 6 states. [2018-12-09 17:17:58,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:17:58,803 INFO L93 Difference]: Finished difference Result 356173 states and 1552270 transitions. [2018-12-09 17:17:58,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-12-09 17:17:58,804 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2018-12-09 17:17:58,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:17:59,696 INFO L225 Difference]: With dead ends: 356173 [2018-12-09 17:17:59,696 INFO L226 Difference]: Without dead ends: 352823 [2018-12-09 17:17:59,696 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2018-12-09 17:18:01,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352823 states. [2018-12-09 17:18:07,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352823 to 205743. [2018-12-09 17:18:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205743 states. [2018-12-09 17:18:08,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205743 states to 205743 states and 906781 transitions. [2018-12-09 17:18:08,135 INFO L78 Accepts]: Start accepts. Automaton has 205743 states and 906781 transitions. Word has length 59 [2018-12-09 17:18:08,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:08,136 INFO L480 AbstractCegarLoop]: Abstraction has 205743 states and 906781 transitions. [2018-12-09 17:18:08,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 17:18:08,136 INFO L276 IsEmpty]: Start isEmpty. Operand 205743 states and 906781 transitions. [2018-12-09 17:18:08,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-09 17:18:08,169 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:08,169 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, 1, 1, 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 17:18:08,169 INFO L423 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:08,169 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:08,169 INFO L82 PathProgramCache]: Analyzing trace with hash 396603386, now seen corresponding path program 1 times [2018-12-09 17:18:08,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:08,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:08,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:08,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:08,171 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:08,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:08,200 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 17:18:08,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:08,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 17:18:08,201 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:08,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 17:18:08,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 17:18:08,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 17:18:08,201 INFO L87 Difference]: Start difference. First operand 205743 states and 906781 transitions. Second operand 3 states. [2018-12-09 17:18:09,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:09,762 INFO L93 Difference]: Finished difference Result 227888 states and 1004312 transitions. [2018-12-09 17:18:09,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 17:18:09,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2018-12-09 17:18:09,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:10,383 INFO L225 Difference]: With dead ends: 227888 [2018-12-09 17:18:10,383 INFO L226 Difference]: Without dead ends: 227888 [2018-12-09 17:18:10,383 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 17:18:11,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227888 states. [2018-12-09 17:18:14,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227888 to 216543. [2018-12-09 17:18:14,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216543 states. [2018-12-09 17:18:15,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216543 states to 216543 states and 954421 transitions. [2018-12-09 17:18:15,379 INFO L78 Accepts]: Start accepts. Automaton has 216543 states and 954421 transitions. Word has length 59 [2018-12-09 17:18:15,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:15,380 INFO L480 AbstractCegarLoop]: Abstraction has 216543 states and 954421 transitions. [2018-12-09 17:18:15,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 17:18:15,380 INFO L276 IsEmpty]: Start isEmpty. Operand 216543 states and 954421 transitions. [2018-12-09 17:18:15,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-09 17:18:15,413 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:15,413 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] [2018-12-09 17:18:15,414 INFO L423 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:15,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:15,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1117448070, now seen corresponding path program 1 times [2018-12-09 17:18:15,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:15,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:15,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:15,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:15,415 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:15,504 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 17:18:15,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:15,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 17:18:15,505 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:15,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 17:18:15,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 17:18:15,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-09 17:18:15,505 INFO L87 Difference]: Start difference. First operand 216543 states and 954421 transitions. Second operand 6 states. [2018-12-09 17:18:17,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:17,469 INFO L93 Difference]: Finished difference Result 292218 states and 1274191 transitions. [2018-12-09 17:18:17,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 17:18:17,470 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2018-12-09 17:18:17,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:18,279 INFO L225 Difference]: With dead ends: 292218 [2018-12-09 17:18:18,279 INFO L226 Difference]: Without dead ends: 286523 [2018-12-09 17:18:18,280 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 17:18:22,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286523 states. [2018-12-09 17:18:25,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286523 to 261028. [2018-12-09 17:18:25,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261028 states. [2018-12-09 17:18:26,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261028 states to 261028 states and 1142704 transitions. [2018-12-09 17:18:26,624 INFO L78 Accepts]: Start accepts. Automaton has 261028 states and 1142704 transitions. Word has length 59 [2018-12-09 17:18:26,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:26,624 INFO L480 AbstractCegarLoop]: Abstraction has 261028 states and 1142704 transitions. [2018-12-09 17:18:26,624 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 17:18:26,624 INFO L276 IsEmpty]: Start isEmpty. Operand 261028 states and 1142704 transitions. [2018-12-09 17:18:26,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-09 17:18:26,662 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:26,663 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] [2018-12-09 17:18:26,663 INFO L423 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:26,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:26,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1380567867, now seen corresponding path program 1 times [2018-12-09 17:18:26,663 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:26,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:26,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:26,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:26,665 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:26,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:26,730 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 17:18:26,730 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:26,730 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 17:18:26,730 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:26,731 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 17:18:26,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 17:18:26,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 17:18:26,731 INFO L87 Difference]: Start difference. First operand 261028 states and 1142704 transitions. Second operand 7 states. [2018-12-09 17:18:29,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:29,236 INFO L93 Difference]: Finished difference Result 379443 states and 1607921 transitions. [2018-12-09 17:18:29,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 17:18:29,237 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2018-12-09 17:18:29,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:30,211 INFO L225 Difference]: With dead ends: 379443 [2018-12-09 17:18:30,211 INFO L226 Difference]: Without dead ends: 379443 [2018-12-09 17:18:30,212 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-12-09 17:18:31,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379443 states. [2018-12-09 17:18:39,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379443 to 308618. [2018-12-09 17:18:39,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 308618 states. [2018-12-09 17:18:40,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308618 states to 308618 states and 1326661 transitions. [2018-12-09 17:18:40,802 INFO L78 Accepts]: Start accepts. Automaton has 308618 states and 1326661 transitions. Word has length 59 [2018-12-09 17:18:40,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:40,802 INFO L480 AbstractCegarLoop]: Abstraction has 308618 states and 1326661 transitions. [2018-12-09 17:18:40,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 17:18:40,802 INFO L276 IsEmpty]: Start isEmpty. Operand 308618 states and 1326661 transitions. [2018-12-09 17:18:40,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-09 17:18:40,845 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:40,845 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] [2018-12-09 17:18:40,845 INFO L423 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:40,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:40,846 INFO L82 PathProgramCache]: Analyzing trace with hash -2026895748, now seen corresponding path program 1 times [2018-12-09 17:18:40,846 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:40,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:40,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:40,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:40,847 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:40,878 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 17:18:40,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:40,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 17:18:40,878 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:40,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 17:18:40,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 17:18:40,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 17:18:40,879 INFO L87 Difference]: Start difference. First operand 308618 states and 1326661 transitions. Second operand 4 states. [2018-12-09 17:18:42,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:42,089 INFO L93 Difference]: Finished difference Result 267151 states and 1127019 transitions. [2018-12-09 17:18:42,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 17:18:42,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2018-12-09 17:18:42,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:43,281 INFO L225 Difference]: With dead ends: 267151 [2018-12-09 17:18:43,281 INFO L226 Difference]: Without dead ends: 259066 [2018-12-09 17:18:43,282 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 17:18:44,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259066 states. [2018-12-09 17:18:47,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259066 to 259066. [2018-12-09 17:18:47,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259066 states. [2018-12-09 17:18:48,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259066 states to 259066 states and 1099297 transitions. [2018-12-09 17:18:48,382 INFO L78 Accepts]: Start accepts. Automaton has 259066 states and 1099297 transitions. Word has length 59 [2018-12-09 17:18:48,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:48,382 INFO L480 AbstractCegarLoop]: Abstraction has 259066 states and 1099297 transitions. [2018-12-09 17:18:48,382 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 17:18:48,382 INFO L276 IsEmpty]: Start isEmpty. Operand 259066 states and 1099297 transitions. [2018-12-09 17:18:48,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-09 17:18:48,418 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:48,418 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 17:18:48,418 INFO L423 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:48,418 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:48,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1169735306, now seen corresponding path program 1 times [2018-12-09 17:18:48,418 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:48,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:48,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:48,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:48,420 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:48,459 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 17:18:48,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:48,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 17:18:48,460 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:48,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 17:18:48,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 17:18:48,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-09 17:18:48,460 INFO L87 Difference]: Start difference. First operand 259066 states and 1099297 transitions. Second operand 5 states. [2018-12-09 17:18:48,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:48,697 INFO L93 Difference]: Finished difference Result 57898 states and 224521 transitions. [2018-12-09 17:18:48,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 17:18:48,697 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2018-12-09 17:18:48,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:48,798 INFO L225 Difference]: With dead ends: 57898 [2018-12-09 17:18:48,798 INFO L226 Difference]: Without dead ends: 50982 [2018-12-09 17:18:48,798 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 17:18:48,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50982 states. [2018-12-09 17:18:49,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50982 to 50742. [2018-12-09 17:18:49,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50742 states. [2018-12-09 17:18:49,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50742 states to 50742 states and 196308 transitions. [2018-12-09 17:18:49,938 INFO L78 Accepts]: Start accepts. Automaton has 50742 states and 196308 transitions. Word has length 60 [2018-12-09 17:18:49,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:49,938 INFO L480 AbstractCegarLoop]: Abstraction has 50742 states and 196308 transitions. [2018-12-09 17:18:49,938 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 17:18:49,938 INFO L276 IsEmpty]: Start isEmpty. Operand 50742 states and 196308 transitions. [2018-12-09 17:18:49,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-09 17:18:49,954 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:49,955 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] [2018-12-09 17:18:49,955 INFO L423 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:49,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:49,955 INFO L82 PathProgramCache]: Analyzing trace with hash -41019099, now seen corresponding path program 1 times [2018-12-09 17:18:49,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:49,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:49,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:49,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:49,956 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:49,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:49,991 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 17:18:49,991 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:49,991 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 17:18:49,991 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:49,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 17:18:49,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 17:18:49,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 17:18:49,992 INFO L87 Difference]: Start difference. First operand 50742 states and 196308 transitions. Second operand 4 states. [2018-12-09 17:18:50,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:50,265 INFO L93 Difference]: Finished difference Result 59861 states and 230927 transitions. [2018-12-09 17:18:50,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 17:18:50,265 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 70 [2018-12-09 17:18:50,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:50,381 INFO L225 Difference]: With dead ends: 59861 [2018-12-09 17:18:50,382 INFO L226 Difference]: Without dead ends: 59861 [2018-12-09 17:18:50,382 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 17:18:50,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59861 states. [2018-12-09 17:18:51,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59861 to 53957. [2018-12-09 17:18:51,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53957 states. [2018-12-09 17:18:52,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53957 states to 53957 states and 208375 transitions. [2018-12-09 17:18:52,527 INFO L78 Accepts]: Start accepts. Automaton has 53957 states and 208375 transitions. Word has length 70 [2018-12-09 17:18:52,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:52,527 INFO L480 AbstractCegarLoop]: Abstraction has 53957 states and 208375 transitions. [2018-12-09 17:18:52,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 17:18:52,528 INFO L276 IsEmpty]: Start isEmpty. Operand 53957 states and 208375 transitions. [2018-12-09 17:18:52,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-09 17:18:52,546 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:52,546 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] [2018-12-09 17:18:52,546 INFO L423 AbstractCegarLoop]: === Iteration 12 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:52,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:52,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1701791236, now seen corresponding path program 1 times [2018-12-09 17:18:52,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:52,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:52,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:52,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:52,548 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:52,593 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 17:18:52,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:52,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 17:18:52,593 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:52,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 17:18:52,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 17:18:52,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 17:18:52,593 INFO L87 Difference]: Start difference. First operand 53957 states and 208375 transitions. Second operand 6 states. [2018-12-09 17:18:52,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:52,664 INFO L93 Difference]: Finished difference Result 14405 states and 48007 transitions. [2018-12-09 17:18:52,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 17:18:52,664 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2018-12-09 17:18:52,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:52,683 INFO L225 Difference]: With dead ends: 14405 [2018-12-09 17:18:52,683 INFO L226 Difference]: Without dead ends: 12149 [2018-12-09 17:18:52,683 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-12-09 17:18:52,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12149 states. [2018-12-09 17:18:52,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12149 to 11559. [2018-12-09 17:18:52,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11559 states. [2018-12-09 17:18:52,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11559 states to 11559 states and 37959 transitions. [2018-12-09 17:18:52,809 INFO L78 Accepts]: Start accepts. Automaton has 11559 states and 37959 transitions. Word has length 70 [2018-12-09 17:18:52,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:52,810 INFO L480 AbstractCegarLoop]: Abstraction has 11559 states and 37959 transitions. [2018-12-09 17:18:52,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 17:18:52,810 INFO L276 IsEmpty]: Start isEmpty. Operand 11559 states and 37959 transitions. [2018-12-09 17:18:52,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 17:18:52,820 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:52,820 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] [2018-12-09 17:18:52,820 INFO L423 AbstractCegarLoop]: === Iteration 13 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:52,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:52,820 INFO L82 PathProgramCache]: Analyzing trace with hash -936811932, now seen corresponding path program 1 times [2018-12-09 17:18:52,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:52,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:52,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:52,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:52,821 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:52,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:52,864 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 17:18:52,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:52,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 17:18:52,865 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:52,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 17:18:52,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 17:18:52,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 17:18:52,865 INFO L87 Difference]: Start difference. First operand 11559 states and 37959 transitions. Second operand 5 states. [2018-12-09 17:18:53,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:53,049 INFO L93 Difference]: Finished difference Result 17768 states and 56955 transitions. [2018-12-09 17:18:53,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 17:18:53,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2018-12-09 17:18:53,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:53,070 INFO L225 Difference]: With dead ends: 17768 [2018-12-09 17:18:53,070 INFO L226 Difference]: Without dead ends: 17768 [2018-12-09 17:18:53,070 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 3 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 17:18:53,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17768 states. [2018-12-09 17:18:53,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17768 to 14546. [2018-12-09 17:18:53,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14546 states. [2018-12-09 17:18:53,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14546 states to 14546 states and 46978 transitions. [2018-12-09 17:18:53,233 INFO L78 Accepts]: Start accepts. Automaton has 14546 states and 46978 transitions. Word has length 89 [2018-12-09 17:18:53,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:53,233 INFO L480 AbstractCegarLoop]: Abstraction has 14546 states and 46978 transitions. [2018-12-09 17:18:53,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 17:18:53,233 INFO L276 IsEmpty]: Start isEmpty. Operand 14546 states and 46978 transitions. [2018-12-09 17:18:53,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 17:18:53,246 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:53,246 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] [2018-12-09 17:18:53,246 INFO L423 AbstractCegarLoop]: === Iteration 14 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:53,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:53,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1327181786, now seen corresponding path program 2 times [2018-12-09 17:18:53,247 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:53,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:53,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:53,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:53,248 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:53,264 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 17:18:53,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:53,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 17:18:53,265 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:53,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 17:18:53,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 17:18:53,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 17:18:53,266 INFO L87 Difference]: Start difference. First operand 14546 states and 46978 transitions. Second operand 3 states. [2018-12-09 17:18:53,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:53,377 INFO L93 Difference]: Finished difference Result 15656 states and 50431 transitions. [2018-12-09 17:18:53,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 17:18:53,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2018-12-09 17:18:53,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:53,395 INFO L225 Difference]: With dead ends: 15656 [2018-12-09 17:18:53,395 INFO L226 Difference]: Without dead ends: 15656 [2018-12-09 17:18:53,396 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 17:18:53,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15656 states. [2018-12-09 17:18:53,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15656 to 15156. [2018-12-09 17:18:53,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15156 states. [2018-12-09 17:18:53,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15156 states to 15156 states and 48886 transitions. [2018-12-09 17:18:53,570 INFO L78 Accepts]: Start accepts. Automaton has 15156 states and 48886 transitions. Word has length 89 [2018-12-09 17:18:53,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:53,570 INFO L480 AbstractCegarLoop]: Abstraction has 15156 states and 48886 transitions. [2018-12-09 17:18:53,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 17:18:53,570 INFO L276 IsEmpty]: Start isEmpty. Operand 15156 states and 48886 transitions. [2018-12-09 17:18:53,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 17:18:53,585 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:53,585 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] [2018-12-09 17:18:53,585 INFO L423 AbstractCegarLoop]: === Iteration 15 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:53,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:53,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1692086630, now seen corresponding path program 3 times [2018-12-09 17:18:53,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:53,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:53,586 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 17:18:53,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:53,587 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:53,645 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 17:18:53,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:53,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 17:18:53,645 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:53,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 17:18:53,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 17:18:53,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-09 17:18:53,645 INFO L87 Difference]: Start difference. First operand 15156 states and 48886 transitions. Second operand 6 states. [2018-12-09 17:18:53,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:53,845 INFO L93 Difference]: Finished difference Result 22001 states and 70567 transitions. [2018-12-09 17:18:53,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 17:18:53,845 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-12-09 17:18:53,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:53,869 INFO L225 Difference]: With dead ends: 22001 [2018-12-09 17:18:53,869 INFO L226 Difference]: Without dead ends: 21873 [2018-12-09 17:18:53,870 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 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 17:18:53,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21873 states. [2018-12-09 17:18:54,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21873 to 18726. [2018-12-09 17:18:54,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18726 states. [2018-12-09 17:18:54,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18726 states to 18726 states and 60333 transitions. [2018-12-09 17:18:54,090 INFO L78 Accepts]: Start accepts. Automaton has 18726 states and 60333 transitions. Word has length 89 [2018-12-09 17:18:54,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:54,090 INFO L480 AbstractCegarLoop]: Abstraction has 18726 states and 60333 transitions. [2018-12-09 17:18:54,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 17:18:54,090 INFO L276 IsEmpty]: Start isEmpty. Operand 18726 states and 60333 transitions. [2018-12-09 17:18:54,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 17:18:54,107 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:54,107 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] [2018-12-09 17:18:54,108 INFO L423 AbstractCegarLoop]: === Iteration 16 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:54,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:54,108 INFO L82 PathProgramCache]: Analyzing trace with hash -104864729, now seen corresponding path program 1 times [2018-12-09 17:18:54,108 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:54,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:54,109 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 17:18:54,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:54,109 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:54,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:54,170 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 17:18:54,170 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:54,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 17:18:54,170 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:54,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 17:18:54,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 17:18:54,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 17:18:54,171 INFO L87 Difference]: Start difference. First operand 18726 states and 60333 transitions. Second operand 7 states. [2018-12-09 17:18:54,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:54,527 INFO L93 Difference]: Finished difference Result 34495 states and 111647 transitions. [2018-12-09 17:18:54,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 17:18:54,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2018-12-09 17:18:54,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:54,570 INFO L225 Difference]: With dead ends: 34495 [2018-12-09 17:18:54,570 INFO L226 Difference]: Without dead ends: 34495 [2018-12-09 17:18:54,570 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-09 17:18:54,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34495 states. [2018-12-09 17:18:54,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34495 to 22644. [2018-12-09 17:18:54,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22644 states. [2018-12-09 17:18:54,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22644 states to 22644 states and 73466 transitions. [2018-12-09 17:18:54,926 INFO L78 Accepts]: Start accepts. Automaton has 22644 states and 73466 transitions. Word has length 89 [2018-12-09 17:18:54,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:54,927 INFO L480 AbstractCegarLoop]: Abstraction has 22644 states and 73466 transitions. [2018-12-09 17:18:54,927 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 17:18:54,927 INFO L276 IsEmpty]: Start isEmpty. Operand 22644 states and 73466 transitions. [2018-12-09 17:18:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 17:18:54,949 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:54,950 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] [2018-12-09 17:18:54,950 INFO L423 AbstractCegarLoop]: === Iteration 17 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:54,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:54,950 INFO L82 PathProgramCache]: Analyzing trace with hash 782638952, now seen corresponding path program 1 times [2018-12-09 17:18:54,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:54,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:54,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:54,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:54,951 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:55,023 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 17:18:55,023 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:55,023 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 17:18:55,024 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:55,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 17:18:55,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 17:18:55,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-09 17:18:55,024 INFO L87 Difference]: Start difference. First operand 22644 states and 73466 transitions. Second operand 6 states. [2018-12-09 17:18:55,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:55,265 INFO L93 Difference]: Finished difference Result 23712 states and 76203 transitions. [2018-12-09 17:18:55,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 17:18:55,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-12-09 17:18:55,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:55,292 INFO L225 Difference]: With dead ends: 23712 [2018-12-09 17:18:55,292 INFO L226 Difference]: Without dead ends: 23712 [2018-12-09 17:18:55,293 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-09 17:18:55,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23712 states. [2018-12-09 17:18:55,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23712 to 19210. [2018-12-09 17:18:55,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19210 states. [2018-12-09 17:18:55,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19210 states to 19210 states and 61517 transitions. [2018-12-09 17:18:55,529 INFO L78 Accepts]: Start accepts. Automaton has 19210 states and 61517 transitions. Word has length 89 [2018-12-09 17:18:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:55,529 INFO L480 AbstractCegarLoop]: Abstraction has 19210 states and 61517 transitions. [2018-12-09 17:18:55,529 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 17:18:55,529 INFO L276 IsEmpty]: Start isEmpty. Operand 19210 states and 61517 transitions. [2018-12-09 17:18:55,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 17:18:55,548 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:55,548 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] [2018-12-09 17:18:55,548 INFO L423 AbstractCegarLoop]: === Iteration 18 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:55,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:55,549 INFO L82 PathProgramCache]: Analyzing trace with hash -412334768, now seen corresponding path program 1 times [2018-12-09 17:18:55,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:55,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:55,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:55,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:55,550 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:55,620 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 17:18:55,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:55,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 17:18:55,620 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:55,620 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 17:18:55,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 17:18:55,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 17:18:55,621 INFO L87 Difference]: Start difference. First operand 19210 states and 61517 transitions. Second operand 6 states. [2018-12-09 17:18:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:55,954 INFO L93 Difference]: Finished difference Result 22660 states and 71687 transitions. [2018-12-09 17:18:55,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 17:18:55,954 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-12-09 17:18:55,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:55,979 INFO L225 Difference]: With dead ends: 22660 [2018-12-09 17:18:55,979 INFO L226 Difference]: Without dead ends: 22140 [2018-12-09 17:18:55,979 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 17:18:56,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22140 states. [2018-12-09 17:18:56,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22140 to 20895. [2018-12-09 17:18:56,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20895 states. [2018-12-09 17:18:56,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20895 states to 20895 states and 66670 transitions. [2018-12-09 17:18:56,205 INFO L78 Accepts]: Start accepts. Automaton has 20895 states and 66670 transitions. Word has length 89 [2018-12-09 17:18:56,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:56,206 INFO L480 AbstractCegarLoop]: Abstraction has 20895 states and 66670 transitions. [2018-12-09 17:18:56,206 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 17:18:56,206 INFO L276 IsEmpty]: Start isEmpty. Operand 20895 states and 66670 transitions. [2018-12-09 17:18:56,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 17:18:56,226 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:56,226 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] [2018-12-09 17:18:56,226 INFO L423 AbstractCegarLoop]: === Iteration 19 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:56,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:56,226 INFO L82 PathProgramCache]: Analyzing trace with hash -167762221, now seen corresponding path program 1 times [2018-12-09 17:18:56,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:56,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:56,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:56,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:56,228 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:56,280 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 17:18:56,281 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:56,281 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 17:18:56,281 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:56,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 17:18:56,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 17:18:56,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-12-09 17:18:56,281 INFO L87 Difference]: Start difference. First operand 20895 states and 66670 transitions. Second operand 7 states. [2018-12-09 17:18:56,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:56,578 INFO L93 Difference]: Finished difference Result 23643 states and 75369 transitions. [2018-12-09 17:18:56,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 17:18:56,578 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2018-12-09 17:18:56,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:56,605 INFO L225 Difference]: With dead ends: 23643 [2018-12-09 17:18:56,606 INFO L226 Difference]: Without dead ends: 23643 [2018-12-09 17:18:56,606 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 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 17:18:56,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23643 states. [2018-12-09 17:18:56,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23643 to 21045. [2018-12-09 17:18:56,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21045 states. [2018-12-09 17:18:56,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21045 states to 21045 states and 67310 transitions. [2018-12-09 17:18:56,843 INFO L78 Accepts]: Start accepts. Automaton has 21045 states and 67310 transitions. Word has length 89 [2018-12-09 17:18:56,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:56,844 INFO L480 AbstractCegarLoop]: Abstraction has 21045 states and 67310 transitions. [2018-12-09 17:18:56,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 17:18:56,844 INFO L276 IsEmpty]: Start isEmpty. Operand 21045 states and 67310 transitions. [2018-12-09 17:18:56,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 17:18:56,864 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:56,864 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] [2018-12-09 17:18:56,864 INFO L423 AbstractCegarLoop]: === Iteration 20 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:56,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:56,865 INFO L82 PathProgramCache]: Analyzing trace with hash 1872528687, now seen corresponding path program 1 times [2018-12-09 17:18:56,865 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:56,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:56,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:56,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:56,866 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:56,973 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 17:18:56,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:56,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 17:18:56,973 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:56,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 17:18:56,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 17:18:56,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-09 17:18:56,974 INFO L87 Difference]: Start difference. First operand 21045 states and 67310 transitions. Second operand 6 states. [2018-12-09 17:18:57,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:57,166 INFO L93 Difference]: Finished difference Result 23210 states and 72642 transitions. [2018-12-09 17:18:57,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 17:18:57,167 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-12-09 17:18:57,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:57,192 INFO L225 Difference]: With dead ends: 23210 [2018-12-09 17:18:57,192 INFO L226 Difference]: Without dead ends: 23210 [2018-12-09 17:18:57,192 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-12-09 17:18:57,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23210 states. [2018-12-09 17:18:57,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23210 to 21470. [2018-12-09 17:18:57,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21470 states. [2018-12-09 17:18:57,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21470 states to 21470 states and 67540 transitions. [2018-12-09 17:18:57,427 INFO L78 Accepts]: Start accepts. Automaton has 21470 states and 67540 transitions. Word has length 89 [2018-12-09 17:18:57,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:57,427 INFO L480 AbstractCegarLoop]: Abstraction has 21470 states and 67540 transitions. [2018-12-09 17:18:57,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 17:18:57,427 INFO L276 IsEmpty]: Start isEmpty. Operand 21470 states and 67540 transitions. [2018-12-09 17:18:57,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 17:18:57,448 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:57,448 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] [2018-12-09 17:18:57,448 INFO L423 AbstractCegarLoop]: === Iteration 21 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:57,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:57,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1617792142, now seen corresponding path program 1 times [2018-12-09 17:18:57,448 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:57,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:57,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:57,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:57,449 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:57,509 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 17:18:57,509 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:57,509 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 17:18:57,509 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:57,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 17:18:57,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 17:18:57,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 17:18:57,509 INFO L87 Difference]: Start difference. First operand 21470 states and 67540 transitions. Second operand 6 states. [2018-12-09 17:18:57,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:57,602 INFO L93 Difference]: Finished difference Result 19998 states and 61732 transitions. [2018-12-09 17:18:57,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 17:18:57,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-12-09 17:18:57,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:57,631 INFO L225 Difference]: With dead ends: 19998 [2018-12-09 17:18:57,631 INFO L226 Difference]: Without dead ends: 19998 [2018-12-09 17:18:57,631 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 17:18:57,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19998 states. [2018-12-09 17:18:57,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19998 to 12659. [2018-12-09 17:18:57,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12659 states. [2018-12-09 17:18:57,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12659 states to 12659 states and 39042 transitions. [2018-12-09 17:18:57,806 INFO L78 Accepts]: Start accepts. Automaton has 12659 states and 39042 transitions. Word has length 89 [2018-12-09 17:18:57,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:57,807 INFO L480 AbstractCegarLoop]: Abstraction has 12659 states and 39042 transitions. [2018-12-09 17:18:57,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 17:18:57,807 INFO L276 IsEmpty]: Start isEmpty. Operand 12659 states and 39042 transitions. [2018-12-09 17:18:57,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-09 17:18:57,818 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:57,818 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 17:18:57,818 INFO L423 AbstractCegarLoop]: === Iteration 22 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:57,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:57,819 INFO L82 PathProgramCache]: Analyzing trace with hash 368979928, now seen corresponding path program 1 times [2018-12-09 17:18:57,819 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:57,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:57,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:57,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:57,820 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:57,886 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 17:18:57,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:57,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 17:18:57,887 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:57,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 17:18:57,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 17:18:57,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 17:18:57,887 INFO L87 Difference]: Start difference. First operand 12659 states and 39042 transitions. Second operand 6 states. [2018-12-09 17:18:58,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:58,007 INFO L93 Difference]: Finished difference Result 14589 states and 44651 transitions. [2018-12-09 17:18:58,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 17:18:58,007 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-12-09 17:18:58,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:58,022 INFO L225 Difference]: With dead ends: 14589 [2018-12-09 17:18:58,022 INFO L226 Difference]: Without dead ends: 14299 [2018-12-09 17:18:58,022 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 17:18:58,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14299 states. [2018-12-09 17:18:58,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14299 to 11174. [2018-12-09 17:18:58,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11174 states. [2018-12-09 17:18:58,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11174 states to 11174 states and 34174 transitions. [2018-12-09 17:18:58,142 INFO L78 Accepts]: Start accepts. Automaton has 11174 states and 34174 transitions. Word has length 91 [2018-12-09 17:18:58,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:58,142 INFO L480 AbstractCegarLoop]: Abstraction has 11174 states and 34174 transitions. [2018-12-09 17:18:58,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 17:18:58,142 INFO L276 IsEmpty]: Start isEmpty. Operand 11174 states and 34174 transitions. [2018-12-09 17:18:58,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-09 17:18:58,151 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:58,151 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 17:18:58,151 INFO L423 AbstractCegarLoop]: === Iteration 23 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:58,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:58,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1708229415, now seen corresponding path program 1 times [2018-12-09 17:18:58,152 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:58,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:58,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:58,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:58,153 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:58,244 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 17:18:58,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:58,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 17:18:58,245 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:58,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 17:18:58,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 17:18:58,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-12-09 17:18:58,245 INFO L87 Difference]: Start difference. First operand 11174 states and 34174 transitions. Second operand 9 states. [2018-12-09 17:18:58,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:58,449 INFO L93 Difference]: Finished difference Result 13111 states and 40031 transitions. [2018-12-09 17:18:58,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-09 17:18:58,449 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2018-12-09 17:18:58,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:58,462 INFO L225 Difference]: With dead ends: 13111 [2018-12-09 17:18:58,463 INFO L226 Difference]: Without dead ends: 13111 [2018-12-09 17:18:58,463 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-12-09 17:18:58,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13111 states. [2018-12-09 17:18:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13111 to 12772. [2018-12-09 17:18:58,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12772 states. [2018-12-09 17:18:58,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12772 states to 12772 states and 39053 transitions. [2018-12-09 17:18:58,589 INFO L78 Accepts]: Start accepts. Automaton has 12772 states and 39053 transitions. Word has length 91 [2018-12-09 17:18:58,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:58,589 INFO L480 AbstractCegarLoop]: Abstraction has 12772 states and 39053 transitions. [2018-12-09 17:18:58,589 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 17:18:58,589 INFO L276 IsEmpty]: Start isEmpty. Operand 12772 states and 39053 transitions. [2018-12-09 17:18:58,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-09 17:18:58,600 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:58,600 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 17:18:58,600 INFO L423 AbstractCegarLoop]: === Iteration 24 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:58,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:58,600 INFO L82 PathProgramCache]: Analyzing trace with hash -820725734, now seen corresponding path program 1 times [2018-12-09 17:18:58,600 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:58,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:58,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:58,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:58,601 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:58,659 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 17:18:58,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:58,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 17:18:58,659 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:58,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 17:18:58,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 17:18:58,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-12-09 17:18:58,660 INFO L87 Difference]: Start difference. First operand 12772 states and 39053 transitions. Second operand 8 states. [2018-12-09 17:18:58,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:58,972 INFO L93 Difference]: Finished difference Result 22526 states and 68777 transitions. [2018-12-09 17:18:58,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 17:18:58,973 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 91 [2018-12-09 17:18:58,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:58,984 INFO L225 Difference]: With dead ends: 22526 [2018-12-09 17:18:58,984 INFO L226 Difference]: Without dead ends: 11514 [2018-12-09 17:18:58,985 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2018-12-09 17:18:59,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11514 states. [2018-12-09 17:18:59,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11514 to 10920. [2018-12-09 17:18:59,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10920 states. [2018-12-09 17:18:59,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10920 states to 10920 states and 33137 transitions. [2018-12-09 17:18:59,088 INFO L78 Accepts]: Start accepts. Automaton has 10920 states and 33137 transitions. Word has length 91 [2018-12-09 17:18:59,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:59,088 INFO L480 AbstractCegarLoop]: Abstraction has 10920 states and 33137 transitions. [2018-12-09 17:18:59,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 17:18:59,088 INFO L276 IsEmpty]: Start isEmpty. Operand 10920 states and 33137 transitions. [2018-12-09 17:18:59,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-09 17:18:59,097 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:59,097 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 17:18:59,097 INFO L423 AbstractCegarLoop]: === Iteration 25 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:59,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:59,097 INFO L82 PathProgramCache]: Analyzing trace with hash -148260104, now seen corresponding path program 2 times [2018-12-09 17:18:59,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:59,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:59,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:18:59,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:59,099 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:59,170 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 17:18:59,170 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:59,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 17:18:59,170 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:59,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 17:18:59,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 17:18:59,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-12-09 17:18:59,171 INFO L87 Difference]: Start difference. First operand 10920 states and 33137 transitions. Second operand 10 states. [2018-12-09 17:18:59,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:59,637 INFO L93 Difference]: Finished difference Result 18376 states and 56010 transitions. [2018-12-09 17:18:59,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 17:18:59,637 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2018-12-09 17:18:59,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:59,644 INFO L225 Difference]: With dead ends: 18376 [2018-12-09 17:18:59,644 INFO L226 Difference]: Without dead ends: 6510 [2018-12-09 17:18:59,644 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-12-09 17:18:59,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6510 states. [2018-12-09 17:18:59,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6510 to 6510. [2018-12-09 17:18:59,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6510 states. [2018-12-09 17:18:59,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6510 states to 6510 states and 19834 transitions. [2018-12-09 17:18:59,703 INFO L78 Accepts]: Start accepts. Automaton has 6510 states and 19834 transitions. Word has length 91 [2018-12-09 17:18:59,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:18:59,703 INFO L480 AbstractCegarLoop]: Abstraction has 6510 states and 19834 transitions. [2018-12-09 17:18:59,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 17:18:59,703 INFO L276 IsEmpty]: Start isEmpty. Operand 6510 states and 19834 transitions. [2018-12-09 17:18:59,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-09 17:18:59,708 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:18:59,708 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 17:18:59,708 INFO L423 AbstractCegarLoop]: === Iteration 26 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:18:59,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:18:59,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1433608860, now seen corresponding path program 1 times [2018-12-09 17:18:59,708 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:18:59,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:59,709 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-09 17:18:59,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:18:59,709 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:18:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:18:59,785 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 17:18:59,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 17:18:59,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 17:18:59,785 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 17:18:59,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 17:18:59,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 17:18:59,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-09 17:18:59,786 INFO L87 Difference]: Start difference. First operand 6510 states and 19834 transitions. Second operand 7 states. [2018-12-09 17:18:59,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 17:18:59,952 INFO L93 Difference]: Finished difference Result 7878 states and 24020 transitions. [2018-12-09 17:18:59,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 17:18:59,952 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2018-12-09 17:18:59,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 17:18:59,963 INFO L225 Difference]: With dead ends: 7878 [2018-12-09 17:18:59,964 INFO L226 Difference]: Without dead ends: 7878 [2018-12-09 17:18:59,964 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-12-09 17:18:59,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7878 states. [2018-12-09 17:19:00,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7878 to 7814. [2018-12-09 17:19:00,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7814 states. [2018-12-09 17:19:00,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7814 states to 7814 states and 23812 transitions. [2018-12-09 17:19:00,038 INFO L78 Accepts]: Start accepts. Automaton has 7814 states and 23812 transitions. Word has length 91 [2018-12-09 17:19:00,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 17:19:00,038 INFO L480 AbstractCegarLoop]: Abstraction has 7814 states and 23812 transitions. [2018-12-09 17:19:00,038 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 17:19:00,038 INFO L276 IsEmpty]: Start isEmpty. Operand 7814 states and 23812 transitions. [2018-12-09 17:19:00,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-12-09 17:19:00,045 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 17:19:00,045 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 17:19:00,045 INFO L423 AbstractCegarLoop]: === Iteration 27 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 17:19:00,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:19:00,045 INFO L82 PathProgramCache]: Analyzing trace with hash -546105179, now seen corresponding path program 1 times [2018-12-09 17:19:00,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 17:19:00,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:19:00,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 17:19:00,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 17:19:00,047 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 17:19:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 17:19:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 17:19:00,093 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 17:19:00,167 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-09 17:19:00,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:19:00 BasicIcfg [2018-12-09 17:19:00,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 17:19:00,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 17:19:00,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 17:19:00,169 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 17:19:00,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:17:01" (3/4) ... [2018-12-09 17:19:00,171 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 17:19:00,239 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f0a8bf9b-15ae-4574-8b2c-72123aa8eef5/bin-2019/utaipan/witness.graphml [2018-12-09 17:19:00,239 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 17:19:00,240 INFO L168 Benchmark]: Toolchain (without parser) took 119413.74 ms. Allocated memory was 1.0 GB in the beginning and 7.9 GB in the end (delta: 6.9 GB). Free memory was 945.9 MB in the beginning and 6.5 GB in the end (delta: -5.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. [2018-12-09 17:19:00,241 INFO L168 Benchmark]: CDTParser took 0.12 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 17:19:00,241 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-12-09 17:19:00,241 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 17:19:00,241 INFO L168 Benchmark]: Boogie Preprocessor took 19.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 17:19:00,242 INFO L168 Benchmark]: RCFGBuilder took 325.74 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: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. [2018-12-09 17:19:00,242 INFO L168 Benchmark]: TraceAbstraction took 118636.49 ms. Allocated memory was 1.1 GB in the beginning and 7.9 GB in the end (delta: 6.8 GB). Free memory was 1.0 GB in the beginning and 6.5 GB in the end (delta: -5.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. [2018-12-09 17:19:00,242 INFO L168 Benchmark]: Witness Printer took 70.99 ms. Allocated memory is still 7.9 GB. Free memory was 6.5 GB in the beginning and 6.5 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2018-12-09 17:19:00,243 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 326.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -148.0 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.81 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 325.74 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: 46.1 MB). Peak memory consumption was 46.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 118636.49 ms. Allocated memory was 1.1 GB in the beginning and 7.9 GB in the end (delta: 6.8 GB). Free memory was 1.0 GB in the beginning and 6.5 GB in the end (delta: -5.5 GB). Peak memory consumption was 1.3 GB. Max. memory is 11.5 GB. * Witness Printer took 70.99 ms. Allocated memory is still 7.9 GB. Free memory was 6.5 GB in the beginning and 6.5 GB in the end (delta: 28.5 MB). Peak memory consumption was 28.5 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: [L672] -1 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L674] -1 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L676] -1 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0] [L677] -1 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0] [L678] -1 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L680] -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] [L682] -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] [L683] -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] [L684] -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$mem_tmp=0] [L685] -1 _Bool y$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$r_buff0_thd0=0] [L686] -1 _Bool y$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] [L687] -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] [L688] -1 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$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$r_buff0_thd3=0] [L689] -1 _Bool y$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_buff0_thd3=0, y$r_buff1_thd0=0] [L690] -1 _Bool y$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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L691] -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$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L692] -1 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$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$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L693] -1 _Bool y$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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L694] -1 int *y$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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L695] -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$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L696] -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$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L697] -1 int y$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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L698] -1 _Bool y$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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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] [L700] -1 int z = 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, 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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=0] [L701] -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_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=0] [L702] -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$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L790] -1 pthread_t t2585; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L791] FCALL, FORK -1 pthread_create(&t2585, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L792] -1 pthread_t t2586; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L793] FCALL, FORK -1 pthread_create(&t2586, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L794] -1 pthread_t t2587; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L795] FCALL, FORK -1 pthread_create(&t2587, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L753] 0 y$w_buff1 = y$w_buff0 [L754] 0 y$w_buff0 = 1 [L755] 0 y$w_buff1_used = y$w_buff0_used [L756] 0 y$w_buff0_used = (_Bool)1 [L4] COND FALSE 0 !(!expression) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L758] 0 y$r_buff1_thd0 = y$r_buff0_thd0 [L759] 0 y$r_buff1_thd1 = y$r_buff0_thd1 [L760] 0 y$r_buff1_thd2 = y$r_buff0_thd2 [L761] 0 y$r_buff1_thd3 = y$r_buff0_thd3 [L762] 0 y$r_buff0_thd3 = (_Bool)1 [L765] 0 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L706] 1 z = 2 [L711] 1 __unbuffered_p0_EAX = x [L716] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L723] 2 x = 1 [L728] 2 weak$$choice0 = __VERIFIER_nondet_pointer() [L729] 2 weak$$choice2 = __VERIFIER_nondet_pointer() [L730] 2 y$flush_delayed = weak$$choice2 [L731] 2 y$mem_tmp = y VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=2] [L732] EXPR 2 !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=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=2] [L732] 2 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) [L733] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, 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$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L733] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L734] EXPR 2 weak$$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$w_buff1)) VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1))=0, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L734] 2 y$w_buff1 = weak$$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)) [L735] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, 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=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=2] [L768] EXPR 0 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used))=1, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L735] 2 y$w_buff0_used = weak$$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)) [L736] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, 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$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L736] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L737] EXPR 2 weak$$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=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2))=0, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L737] 2 y$r_buff0_thd2 = weak$$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)) [L738] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, 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$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L738] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L739] 2 __unbuffered_p1_EAX = y VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=0, y$flush_delayed=1, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L740] EXPR 2 y$flush_delayed ? y$mem_tmp : y VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=0, y$flush_delayed=1, y$flush_delayed ? y$mem_tmp : y=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L740] 2 y = y$flush_delayed ? y$mem_tmp : y [L741] 2 y$flush_delayed = (_Bool)0 [L746] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L768] 0 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L769] EXPR 0 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L769] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L770] EXPR 0 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L770] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L771] EXPR 0 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L771] 0 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L772] EXPR 0 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L772] 0 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L775] 0 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L797] -1 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L801] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L801] EXPR -1 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L801] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L801] -1 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L802] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L802] -1 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L803] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L803] -1 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L804] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L804] -1 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L805] EXPR -1 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L805] -1 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L808] -1 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0) VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L4] COND TRUE -1 !expression VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L4] -1 __VERIFIER_error() VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=1, y=1, 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_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=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, z=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 217 locations, 3 error locations. UNSAFE Result, 118.5s OverallTime, 27 OverallIterations, 1 TraceHistogramMax, 27.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6821 SDtfs, 9065 SDslu, 15413 SDs, 0 SdLazy, 5887 SolverSat, 391 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 244 GetRequests, 65 SyntacticMatches, 13 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=308618occurred in iteration=8, 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: 67.7s AutomataMinimizationTime, 26 MinimizatonAttempts, 607340 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 2046 NumberOfCodeBlocks, 2046 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1929 ConstructedInterpolants, 0 QuantifiedInterpolants, 413943 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 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...