java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/token_ring.06.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:50:24,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:50:24,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:50:24,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:50:24,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:50:24,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:50:24,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:50:24,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:50:24,304 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:50:24,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:50:24,306 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:50:24,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:50:24,308 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:50:24,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:50:24,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:50:24,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:50:24,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:50:24,320 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:50:24,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:50:24,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:50:24,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:50:24,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:50:24,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:50:24,333 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:50:24,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:50:24,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:50:24,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:50:24,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:50:24,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:50:24,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:50:24,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:50:24,343 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:50:24,344 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:50:24,345 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:50:24,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:50:24,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:50:24,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:50:24,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:50:24,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:50:24,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:50:24,353 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:50:24,354 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:50:24,372 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:50:24,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:50:24,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:50:24,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:50:24,376 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:50:24,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:50:24,377 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:50:24,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:50:24,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:50:24,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:50:24,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:50:24,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:50:24,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:50:24,380 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:50:24,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:50:24,380 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:50:24,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:50:24,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:50:24,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:50:24,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:50:24,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:50:24,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:50:24,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:50:24,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:50:24,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:50:24,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:50:24,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:50:24,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:50:24,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:50:24,702 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:50:24,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:50:24,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:50:24,720 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:50:24,721 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:50:24,722 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.06.cil-1.c [2019-10-14 23:50:24,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82d16b25/59ff644e6e9d49cd90f3a560dd79f090/FLAG2a550da62 [2019-10-14 23:50:25,339 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:50:25,341 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.06.cil-1.c [2019-10-14 23:50:25,355 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82d16b25/59ff644e6e9d49cd90f3a560dd79f090/FLAG2a550da62 [2019-10-14 23:50:25,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d82d16b25/59ff644e6e9d49cd90f3a560dd79f090 [2019-10-14 23:50:25,686 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:50:25,690 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:50:25,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:50:25,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:50:25,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:50:25,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:50:25" (1/1) ... [2019-10-14 23:50:25,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bdcd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:25, skipping insertion in model container [2019-10-14 23:50:25,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:50:25" (1/1) ... [2019-10-14 23:50:25,709 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:50:25,775 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:50:26,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:50:26,162 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:50:26,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:50:26,274 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:50:26,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:26 WrapperNode [2019-10-14 23:50:26,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:50:26,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:50:26,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:50:26,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:50:26,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:26" (1/1) ... [2019-10-14 23:50:26,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:26" (1/1) ... [2019-10-14 23:50:26,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:26" (1/1) ... [2019-10-14 23:50:26,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:26" (1/1) ... [2019-10-14 23:50:26,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:26" (1/1) ... [2019-10-14 23:50:26,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:26" (1/1) ... [2019-10-14 23:50:26,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:26" (1/1) ... [2019-10-14 23:50:26,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:50:26,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:50:26,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:50:26,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:50:26,357 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:50:26,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:50:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:50:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-10-14 23:50:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2019-10-14 23:50:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2019-10-14 23:50:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2019-10-14 23:50:26,410 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2019-10-14 23:50:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2019-10-14 23:50:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2019-10-14 23:50:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2019-10-14 23:50:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2019-10-14 23:50:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2019-10-14 23:50:26,411 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2019-10-14 23:50:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2019-10-14 23:50:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2019-10-14 23:50:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2019-10-14 23:50:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2019-10-14 23:50:26,412 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-10-14 23:50:26,413 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-10-14 23:50:26,413 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-10-14 23:50:26,413 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-10-14 23:50:26,413 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-10-14 23:50:26,413 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-10-14 23:50:26,413 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-10-14 23:50:26,413 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2019-10-14 23:50:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-10-14 23:50:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-10-14 23:50:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-10-14 23:50:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-10-14 23:50:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-10-14 23:50:26,414 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:50:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:50:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-10-14 23:50:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2019-10-14 23:50:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2019-10-14 23:50:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2019-10-14 23:50:26,415 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2019-10-14 23:50:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2019-10-14 23:50:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2019-10-14 23:50:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2019-10-14 23:50:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2019-10-14 23:50:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:50:26,416 INFO L130 BoogieDeclarations]: Found specification of procedure master [2019-10-14 23:50:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2019-10-14 23:50:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2019-10-14 23:50:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2019-10-14 23:50:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2019-10-14 23:50:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2019-10-14 23:50:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2019-10-14 23:50:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-10-14 23:50:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-10-14 23:50:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-10-14 23:50:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-10-14 23:50:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-10-14 23:50:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-10-14 23:50:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-10-14 23:50:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-10-14 23:50:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-10-14 23:50:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-10-14 23:50:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-10-14 23:50:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-10-14 23:50:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:50:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:50:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:50:27,394 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:50:27,395 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-14 23:50:27,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:50:27 BoogieIcfgContainer [2019-10-14 23:50:27,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:50:27,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:50:27,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:50:27,407 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:50:27,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:50:25" (1/3) ... [2019-10-14 23:50:27,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d93bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:50:27, skipping insertion in model container [2019-10-14 23:50:27,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:26" (2/3) ... [2019-10-14 23:50:27,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d93bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:50:27, skipping insertion in model container [2019-10-14 23:50:27,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:50:27" (3/3) ... [2019-10-14 23:50:27,415 INFO L109 eAbstractionObserver]: Analyzing ICFG token_ring.06.cil-1.c [2019-10-14 23:50:27,426 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:50:27,448 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:50:27,461 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:50:27,490 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:50:27,491 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:50:27,491 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:50:27,491 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:50:27,491 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:50:27,492 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:50:27,492 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:50:27,492 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:50:27,519 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states. [2019-10-14 23:50:27,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-14 23:50:27,536 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:50:27,537 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:50:27,539 INFO L410 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:50:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:50:27,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1698100173, now seen corresponding path program 1 times [2019-10-14 23:50:27,556 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:50:27,556 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512261983] [2019-10-14 23:50:27,557 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:27,557 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:27,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:50:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,131 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-10-14 23:50:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:28,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:50:28,483 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512261983] [2019-10-14 23:50:28,484 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:50:28,484 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:50:28,484 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167973839] [2019-10-14 23:50:28,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:50:28,492 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:50:28,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:50:28,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:50:28,512 INFO L87 Difference]: Start difference. First operand 301 states. Second operand 9 states. [2019-10-14 23:50:28,734 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-10-14 23:50:32,371 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-10-14 23:50:35,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:50:35,059 INFO L93 Difference]: Finished difference Result 1162 states and 1894 transitions. [2019-10-14 23:50:35,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:50:35,062 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 148 [2019-10-14 23:50:35,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:50:35,111 INFO L225 Difference]: With dead ends: 1162 [2019-10-14 23:50:35,111 INFO L226 Difference]: Without dead ends: 866 [2019-10-14 23:50:35,127 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:50:35,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2019-10-14 23:50:35,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 562. [2019-10-14 23:50:35,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-14 23:50:35,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 816 transitions. [2019-10-14 23:50:35,427 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 816 transitions. Word has length 148 [2019-10-14 23:50:35,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:50:35,428 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 816 transitions. [2019-10-14 23:50:35,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:50:35,437 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 816 transitions. [2019-10-14 23:50:35,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-14 23:50:35,447 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:50:35,448 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:50:35,448 INFO L410 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:50:35,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:50:35,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1381668023, now seen corresponding path program 1 times [2019-10-14 23:50:35,450 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:50:35,451 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801204416] [2019-10-14 23:50:35,451 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:35,451 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:35,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:50:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,697 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-10-14 23:50:35,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:50:35,945 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801204416] [2019-10-14 23:50:35,946 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:50:35,946 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:50:35,946 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717987291] [2019-10-14 23:50:35,950 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:50:35,951 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:50:35,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:50:35,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:50:35,952 INFO L87 Difference]: Start difference. First operand 562 states and 816 transitions. Second operand 10 states. [2019-10-14 23:50:39,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:50:39,672 INFO L93 Difference]: Finished difference Result 1394 states and 2098 transitions. [2019-10-14 23:50:39,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:50:39,674 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-10-14 23:50:39,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:50:39,686 INFO L225 Difference]: With dead ends: 1394 [2019-10-14 23:50:39,686 INFO L226 Difference]: Without dead ends: 856 [2019-10-14 23:50:39,690 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:50:39,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-10-14 23:50:39,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-10-14 23:50:39,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-14 23:50:39,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 809 transitions. [2019-10-14 23:50:39,805 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 809 transitions. Word has length 148 [2019-10-14 23:50:39,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:50:39,807 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 809 transitions. [2019-10-14 23:50:39,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:50:39,807 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 809 transitions. [2019-10-14 23:50:39,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-14 23:50:39,811 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:50:39,812 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:50:39,812 INFO L410 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:50:39,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:50:39,813 INFO L82 PathProgramCache]: Analyzing trace with hash -234089395, now seen corresponding path program 1 times [2019-10-14 23:50:39,814 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:50:39,815 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599655854] [2019-10-14 23:50:39,815 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:39,816 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:39,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:50:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:50:40,193 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599655854] [2019-10-14 23:50:40,193 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:50:40,193 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:50:40,194 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938423222] [2019-10-14 23:50:40,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:50:40,195 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:50:40,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:50:40,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:50:40,195 INFO L87 Difference]: Start difference. First operand 562 states and 809 transitions. Second operand 10 states. [2019-10-14 23:50:40,327 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-10-14 23:50:43,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:50:43,802 INFO L93 Difference]: Finished difference Result 1394 states and 2084 transitions. [2019-10-14 23:50:43,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:50:43,803 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-10-14 23:50:43,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:50:43,810 INFO L225 Difference]: With dead ends: 1394 [2019-10-14 23:50:43,810 INFO L226 Difference]: Without dead ends: 856 [2019-10-14 23:50:43,812 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:50:43,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-10-14 23:50:43,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-10-14 23:50:43,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-14 23:50:43,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 802 transitions. [2019-10-14 23:50:43,894 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 802 transitions. Word has length 148 [2019-10-14 23:50:43,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:50:43,895 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 802 transitions. [2019-10-14 23:50:43,895 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:50:43,895 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 802 transitions. [2019-10-14 23:50:43,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-14 23:50:43,897 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:50:43,898 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:50:43,898 INFO L410 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:50:43,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:50:43,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1934700113, now seen corresponding path program 1 times [2019-10-14 23:50:43,899 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:50:43,899 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944601082] [2019-10-14 23:50:43,899 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:43,899 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:43,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:50:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:44,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:50:44,242 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944601082] [2019-10-14 23:50:44,242 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:50:44,243 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:50:44,243 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471043138] [2019-10-14 23:50:44,244 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:50:44,244 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:50:44,244 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:50:44,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:50:44,244 INFO L87 Difference]: Start difference. First operand 562 states and 802 transitions. Second operand 10 states. [2019-10-14 23:50:44,379 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-10-14 23:50:47,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:50:47,717 INFO L93 Difference]: Finished difference Result 1394 states and 2066 transitions. [2019-10-14 23:50:47,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:50:47,717 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-10-14 23:50:47,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:50:47,723 INFO L225 Difference]: With dead ends: 1394 [2019-10-14 23:50:47,723 INFO L226 Difference]: Without dead ends: 856 [2019-10-14 23:50:47,726 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:50:47,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-10-14 23:50:47,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-10-14 23:50:47,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-14 23:50:47,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 795 transitions. [2019-10-14 23:50:47,807 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 795 transitions. Word has length 148 [2019-10-14 23:50:47,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:50:47,808 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 795 transitions. [2019-10-14 23:50:47,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:50:47,808 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 795 transitions. [2019-10-14 23:50:47,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-14 23:50:47,810 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:50:47,810 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:50:47,810 INFO L410 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:50:47,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:50:47,811 INFO L82 PathProgramCache]: Analyzing trace with hash 2143208397, now seen corresponding path program 1 times [2019-10-14 23:50:47,811 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:50:47,811 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874230341] [2019-10-14 23:50:47,812 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:47,812 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:47,812 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:50:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:47,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:48,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:50:48,165 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874230341] [2019-10-14 23:50:48,165 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:50:48,165 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:50:48,165 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845185820] [2019-10-14 23:50:48,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:50:48,166 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:50:48,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:50:48,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:50:48,167 INFO L87 Difference]: Start difference. First operand 562 states and 795 transitions. Second operand 10 states. [2019-10-14 23:50:51,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:50:51,228 INFO L93 Difference]: Finished difference Result 1394 states and 2048 transitions. [2019-10-14 23:50:51,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:50:51,229 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-10-14 23:50:51,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:50:51,235 INFO L225 Difference]: With dead ends: 1394 [2019-10-14 23:50:51,235 INFO L226 Difference]: Without dead ends: 856 [2019-10-14 23:50:51,237 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:50:51,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-10-14 23:50:51,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-10-14 23:50:51,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-14 23:50:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 788 transitions. [2019-10-14 23:50:51,314 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 788 transitions. Word has length 148 [2019-10-14 23:50:51,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:50:51,315 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 788 transitions. [2019-10-14 23:50:51,315 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:50:51,315 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 788 transitions. [2019-10-14 23:50:51,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-14 23:50:51,317 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:50:51,317 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:50:51,317 INFO L410 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:50:51,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:50:51,318 INFO L82 PathProgramCache]: Analyzing trace with hash 421205711, now seen corresponding path program 1 times [2019-10-14 23:50:51,318 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:50:51,318 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847270986] [2019-10-14 23:50:51,318 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:51,319 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:51,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:50:51,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,493 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-10-14 23:50:51,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:51,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:50:51,675 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847270986] [2019-10-14 23:50:51,676 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:50:51,676 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:50:51,677 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579794456] [2019-10-14 23:50:51,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:50:51,677 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:50:51,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:50:51,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:50:51,678 INFO L87 Difference]: Start difference. First operand 562 states and 788 transitions. Second operand 10 states. [2019-10-14 23:50:51,828 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-10-14 23:50:55,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:50:55,073 INFO L93 Difference]: Finished difference Result 1394 states and 2030 transitions. [2019-10-14 23:50:55,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:50:55,073 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-10-14 23:50:55,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:50:55,079 INFO L225 Difference]: With dead ends: 1394 [2019-10-14 23:50:55,079 INFO L226 Difference]: Without dead ends: 856 [2019-10-14 23:50:55,082 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:50:55,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2019-10-14 23:50:55,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 562. [2019-10-14 23:50:55,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 562 states. [2019-10-14 23:50:55,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 781 transitions. [2019-10-14 23:50:55,154 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 781 transitions. Word has length 148 [2019-10-14 23:50:55,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:50:55,154 INFO L462 AbstractCegarLoop]: Abstraction has 562 states and 781 transitions. [2019-10-14 23:50:55,154 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:50:55,155 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 781 transitions. [2019-10-14 23:50:55,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-14 23:50:55,156 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:50:55,157 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:50:55,157 INFO L410 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:50:55,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:50:55,158 INFO L82 PathProgramCache]: Analyzing trace with hash 363322187, now seen corresponding path program 1 times [2019-10-14 23:50:55,158 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:50:55,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978899672] [2019-10-14 23:50:55,158 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:55,158 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:55,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:50:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:55,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:50:55,544 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978899672] [2019-10-14 23:50:55,544 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:50:55,544 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:50:55,544 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875134636] [2019-10-14 23:50:55,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:50:55,545 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:50:55,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:50:55,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:50:55,546 INFO L87 Difference]: Start difference. First operand 562 states and 781 transitions. Second operand 10 states. [2019-10-14 23:50:59,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:50:59,485 INFO L93 Difference]: Finished difference Result 1677 states and 2524 transitions. [2019-10-14 23:50:59,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:50:59,486 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 148 [2019-10-14 23:50:59,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:50:59,492 INFO L225 Difference]: With dead ends: 1677 [2019-10-14 23:50:59,493 INFO L226 Difference]: Without dead ends: 1139 [2019-10-14 23:50:59,496 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2019-10-14 23:50:59,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2019-10-14 23:50:59,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 714. [2019-10-14 23:50:59,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 714 states. [2019-10-14 23:50:59,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 714 states to 714 states and 964 transitions. [2019-10-14 23:50:59,616 INFO L78 Accepts]: Start accepts. Automaton has 714 states and 964 transitions. Word has length 148 [2019-10-14 23:50:59,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:50:59,616 INFO L462 AbstractCegarLoop]: Abstraction has 714 states and 964 transitions. [2019-10-14 23:50:59,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:50:59,617 INFO L276 IsEmpty]: Start isEmpty. Operand 714 states and 964 transitions. [2019-10-14 23:50:59,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2019-10-14 23:50:59,618 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:50:59,618 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:50:59,619 INFO L410 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:50:59,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:50:59,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1301113009, now seen corresponding path program 1 times [2019-10-14 23:50:59,619 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:50:59,620 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674892951] [2019-10-14 23:50:59,620 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:59,620 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:59,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:50:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:59,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:50:59,973 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674892951] [2019-10-14 23:50:59,974 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:50:59,974 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:50:59,975 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762224211] [2019-10-14 23:50:59,976 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:50:59,977 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:50:59,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:50:59,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:50:59,979 INFO L87 Difference]: Start difference. First operand 714 states and 964 transitions. Second operand 10 states. [2019-10-14 23:51:00,152 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-10-14 23:51:01,971 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 115