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/transmitter.06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:51:54,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:51:54,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:51:54,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:51:54,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:51:54,262 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:51:54,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:51:54,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:51:54,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:51:54,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:51:54,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:51:54,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:51:54,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:51:54,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:51:54,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:51:54,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:51:54,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:51:54,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:51:54,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:51:54,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:51:54,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:51:54,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:51:54,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:51:54,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:51:54,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:51:54,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:51:54,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:51:54,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:51:54,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:51:54,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:51:54,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:51:54,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:51:54,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:51:54,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:51:54,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:51:54,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:51:54,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:51:54,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:51:54,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:51:54,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:51:54,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:51:54,298 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 [2019-10-13 19:51:54,315 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:51:54,315 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:51:54,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:51:54,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:51:54,317 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:51:54,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:51:54,318 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:51:54,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:51:54,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:51:54,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:51:54,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:51:54,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:51:54,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:51:54,319 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:51:54,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:51:54,319 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:51:54,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:51:54,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:51:54,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:51:54,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:51:54,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:51:54,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:51:54,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:51:54,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:51:54,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:51:54,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:51:54,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:51:54,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:51:54,323 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:51:54,622 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:51:54,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:51:54,646 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:51:54,647 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:51:54,648 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:51:54,649 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.06.cil.c [2019-10-13 19:51:54,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6515e0a38/bbdebbee28214451939753696493aa10/FLAG2bacc786c [2019-10-13 19:51:55,205 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:51:55,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.06.cil.c [2019-10-13 19:51:55,233 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6515e0a38/bbdebbee28214451939753696493aa10/FLAG2bacc786c [2019-10-13 19:51:55,530 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6515e0a38/bbdebbee28214451939753696493aa10 [2019-10-13 19:51:55,540 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:51:55,542 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:51:55,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:51:55,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:51:55,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:51:55,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:51:55" (1/1) ... [2019-10-13 19:51:55,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35da1448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:55, skipping insertion in model container [2019-10-13 19:51:55,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:51:55" (1/1) ... [2019-10-13 19:51:55,560 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:51:55,608 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:51:55,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:51:55,869 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:51:56,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:51:56,048 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:51:56,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:56 WrapperNode [2019-10-13 19:51:56,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:51:56,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:51:56,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:51:56,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:51:56,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:56" (1/1) ... [2019-10-13 19:51:56,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:56" (1/1) ... [2019-10-13 19:51:56,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:56" (1/1) ... [2019-10-13 19:51:56,069 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:56" (1/1) ... [2019-10-13 19:51:56,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:56" (1/1) ... [2019-10-13 19:51:56,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:56" (1/1) ... [2019-10-13 19:51:56,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:56" (1/1) ... [2019-10-13 19:51:56,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:51:56,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:51:56,111 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:51:56,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:51:56,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:56" (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 [2019-10-13 19:51:56,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:51:56,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:51:56,162 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-10-13 19:51:56,162 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2019-10-13 19:51:56,163 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2019-10-13 19:51:56,163 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2019-10-13 19:51:56,163 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2019-10-13 19:51:56,163 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2019-10-13 19:51:56,163 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2019-10-13 19:51:56,164 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2019-10-13 19:51:56,164 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2019-10-13 19:51:56,164 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2019-10-13 19:51:56,164 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2019-10-13 19:51:56,164 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2019-10-13 19:51:56,164 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2019-10-13 19:51:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2019-10-13 19:51:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2019-10-13 19:51:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-10-13 19:51:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-10-13 19:51:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-10-13 19:51:56,165 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-10-13 19:51:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-10-13 19:51:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-10-13 19:51:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-10-13 19:51:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2019-10-13 19:51:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-10-13 19:51:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-10-13 19:51:56,166 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-10-13 19:51:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-10-13 19:51:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-10-13 19:51:56,167 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:51:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:51:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:51:56,167 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-10-13 19:51:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2019-10-13 19:51:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2019-10-13 19:51:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2019-10-13 19:51:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2019-10-13 19:51:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2019-10-13 19:51:56,168 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2019-10-13 19:51:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2019-10-13 19:51:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2019-10-13 19:51:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure master [2019-10-13 19:51:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2019-10-13 19:51:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2019-10-13 19:51:56,169 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2019-10-13 19:51:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2019-10-13 19:51:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2019-10-13 19:51:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2019-10-13 19:51:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-10-13 19:51:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-10-13 19:51:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-10-13 19:51:56,170 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-10-13 19:51:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-10-13 19:51:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-10-13 19:51:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-10-13 19:51:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-10-13 19:51:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-10-13 19:51:56,171 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-10-13 19:51:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-10-13 19:51:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-10-13 19:51:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:51:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:51:56,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:51:57,052 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:51:57,052 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-10-13 19:51:57,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:51:57 BoogieIcfgContainer [2019-10-13 19:51:57,054 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:51:57,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:51:57,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:51:57,058 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:51:57,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:51:55" (1/3) ... [2019-10-13 19:51:57,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224463d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:51:57, skipping insertion in model container [2019-10-13 19:51:57,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:51:56" (2/3) ... [2019-10-13 19:51:57,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@224463d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:51:57, skipping insertion in model container [2019-10-13 19:51:57,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:51:57" (3/3) ... [2019-10-13 19:51:57,064 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.06.cil.c [2019-10-13 19:51:57,073 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:51:57,081 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:51:57,092 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:51:57,120 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:51:57,120 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:51:57,120 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:51:57,120 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:51:57,121 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:51:57,121 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:51:57,121 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:51:57,121 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:51:57,147 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states. [2019-10-13 19:51:57,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:51:57,163 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:51:57,164 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, 1, 1] [2019-10-13 19:51:57,166 INFO L410 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:51:57,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:51:57,171 INFO L82 PathProgramCache]: Analyzing trace with hash -1616556766, now seen corresponding path program 1 times [2019-10-13 19:51:57,178 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:51:57,178 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390738148] [2019-10-13 19:51:57,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:57,179 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:51:57,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:51:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,671 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-10-13 19:51:57,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:51:57,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:51:57,944 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390738148] [2019-10-13 19:51:57,944 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:51:57,945 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-13 19:51:57,946 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673599287] [2019-10-13 19:51:57,951 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-13 19:51:57,952 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:51:57,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-13 19:51:57,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-13 19:51:57,969 INFO L87 Difference]: Start difference. First operand 289 states. Second operand 8 states. [2019-10-13 19:51:58,162 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-13 19:51:58,407 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-10-13 19:52:01,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:01,326 INFO L93 Difference]: Finished difference Result 732 states and 1170 transitions. [2019-10-13 19:52:01,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:52:01,328 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 150 [2019-10-13 19:52:01,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:01,348 INFO L225 Difference]: With dead ends: 732 [2019-10-13 19:52:01,348 INFO L226 Difference]: Without dead ends: 451 [2019-10-13 19:52:01,356 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2019-10-13 19:52:01,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2019-10-13 19:52:01,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 280. [2019-10-13 19:52:01,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-10-13 19:52:01,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 396 transitions. [2019-10-13 19:52:01,496 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 396 transitions. Word has length 150 [2019-10-13 19:52:01,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:01,497 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 396 transitions. [2019-10-13 19:52:01,497 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-13 19:52:01,497 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 396 transitions. [2019-10-13 19:52:01,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:52:01,502 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:01,502 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, 1, 1] [2019-10-13 19:52:01,503 INFO L410 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:01,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:01,503 INFO L82 PathProgramCache]: Analyzing trace with hash -668504800, now seen corresponding path program 1 times [2019-10-13 19:52:01,504 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:52:01,504 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697398731] [2019-10-13 19:52:01,504 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:01,504 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:01,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:01,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:52:01,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697398731] [2019-10-13 19:52:01,988 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:01,989 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:52:01,989 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673344401] [2019-10-13 19:52:01,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:52:01,995 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:52:01,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:52:01,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:52:01,995 INFO L87 Difference]: Start difference. First operand 280 states and 396 transitions. Second operand 9 states. [2019-10-13 19:52:05,100 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-10-13 19:52:07,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:07,158 INFO L93 Difference]: Finished difference Result 1091 states and 1659 transitions. [2019-10-13 19:52:07,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:52:07,159 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 150 [2019-10-13 19:52:07,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:07,167 INFO L225 Difference]: With dead ends: 1091 [2019-10-13 19:52:07,167 INFO L226 Difference]: Without dead ends: 835 [2019-10-13 19:52:07,170 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:52:07,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2019-10-13 19:52:07,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 538. [2019-10-13 19:52:07,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-13 19:52:07,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 769 transitions. [2019-10-13 19:52:07,255 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 769 transitions. Word has length 150 [2019-10-13 19:52:07,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:07,256 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 769 transitions. [2019-10-13 19:52:07,256 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:52:07,256 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 769 transitions. [2019-10-13 19:52:07,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:52:07,259 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:07,259 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, 1, 1] [2019-10-13 19:52:07,259 INFO L410 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:07,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:07,260 INFO L82 PathProgramCache]: Analyzing trace with hash 989639713, now seen corresponding path program 1 times [2019-10-13 19:52:07,260 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:52:07,260 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180414293] [2019-10-13 19:52:07,261 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:07,261 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:07,261 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:07,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:52:07,610 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180414293] [2019-10-13 19:52:07,610 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:07,611 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:52:07,611 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674933992] [2019-10-13 19:52:07,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:52:07,613 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:52:07,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:52:07,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:52:07,614 INFO L87 Difference]: Start difference. First operand 538 states and 769 transitions. Second operand 10 states. [2019-10-13 19:52:10,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:10,739 INFO L93 Difference]: Finished difference Result 1340 states and 1993 transitions. [2019-10-13 19:52:10,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:52:10,739 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-10-13 19:52:10,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:10,745 INFO L225 Difference]: With dead ends: 1340 [2019-10-13 19:52:10,746 INFO L226 Difference]: Without dead ends: 826 [2019-10-13 19:52:10,748 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 [2019-10-13 19:52:10,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2019-10-13 19:52:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 538. [2019-10-13 19:52:10,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-13 19:52:10,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 762 transitions. [2019-10-13 19:52:10,819 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 762 transitions. Word has length 150 [2019-10-13 19:52:10,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:10,820 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 762 transitions. [2019-10-13 19:52:10,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:52:10,820 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 762 transitions. [2019-10-13 19:52:10,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:52:10,822 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:10,822 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, 1, 1] [2019-10-13 19:52:10,823 INFO L410 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:10,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:10,823 INFO L82 PathProgramCache]: Analyzing trace with hash 479666017, now seen corresponding path program 1 times [2019-10-13 19:52:10,823 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:52:10,824 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513012386] [2019-10-13 19:52:10,824 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:10,824 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:10,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,018 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-10-13 19:52:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:11,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:52:11,286 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513012386] [2019-10-13 19:52:11,286 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:11,286 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:52:11,287 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349097407] [2019-10-13 19:52:11,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:52:11,288 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:52:11,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:52:11,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:52:11,288 INFO L87 Difference]: Start difference. First operand 538 states and 762 transitions. Second operand 10 states. [2019-10-13 19:52:11,414 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-10-13 19:52:13,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:13,959 INFO L93 Difference]: Finished difference Result 1336 states and 1971 transitions. [2019-10-13 19:52:13,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:52:13,960 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-10-13 19:52:13,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:13,968 INFO L225 Difference]: With dead ends: 1336 [2019-10-13 19:52:13,968 INFO L226 Difference]: Without dead ends: 822 [2019-10-13 19:52:13,971 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 [2019-10-13 19:52:13,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2019-10-13 19:52:14,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 538. [2019-10-13 19:52:14,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-13 19:52:14,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 755 transitions. [2019-10-13 19:52:14,082 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 755 transitions. Word has length 150 [2019-10-13 19:52:14,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:14,083 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 755 transitions. [2019-10-13 19:52:14,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:52:14,083 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 755 transitions. [2019-10-13 19:52:14,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:52:14,087 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:14,087 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, 1, 1] [2019-10-13 19:52:14,088 INFO L410 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:14,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:14,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1570742881, now seen corresponding path program 1 times [2019-10-13 19:52:14,088 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:52:14,089 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617412857] [2019-10-13 19:52:14,089 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:14,090 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:14,090 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,288 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-10-13 19:52:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:52:14,515 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617412857] [2019-10-13 19:52:14,516 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:14,516 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:52:14,517 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270876764] [2019-10-13 19:52:14,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:52:14,517 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:52:14,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:52:14,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:52:14,518 INFO L87 Difference]: Start difference. First operand 538 states and 755 transitions. Second operand 10 states. [2019-10-13 19:52:17,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:17,571 INFO L93 Difference]: Finished difference Result 1332 states and 1949 transitions. [2019-10-13 19:52:17,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:52:17,571 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-10-13 19:52:17,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:17,577 INFO L225 Difference]: With dead ends: 1332 [2019-10-13 19:52:17,577 INFO L226 Difference]: Without dead ends: 818 [2019-10-13 19:52:17,579 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 [2019-10-13 19:52:17,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2019-10-13 19:52:17,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 538. [2019-10-13 19:52:17,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-13 19:52:17,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 748 transitions. [2019-10-13 19:52:17,643 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 748 transitions. Word has length 150 [2019-10-13 19:52:17,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:17,644 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 748 transitions. [2019-10-13 19:52:17,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:52:17,644 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 748 transitions. [2019-10-13 19:52:17,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:52:17,646 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:17,646 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, 1, 1] [2019-10-13 19:52:17,647 INFO L410 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:17,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:17,647 INFO L82 PathProgramCache]: Analyzing trace with hash -2112055073, now seen corresponding path program 1 times [2019-10-13 19:52:17,647 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:52:17,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045477214] [2019-10-13 19:52:17,648 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:17,648 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:17,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:17,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:52:17,944 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045477214] [2019-10-13 19:52:17,944 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:17,944 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:52:17,944 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685739451] [2019-10-13 19:52:17,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:52:17,945 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:52:17,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:52:17,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:52:17,946 INFO L87 Difference]: Start difference. First operand 538 states and 748 transitions. Second operand 10 states. [2019-10-13 19:52:20,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:20,945 INFO L93 Difference]: Finished difference Result 1328 states and 1927 transitions. [2019-10-13 19:52:20,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:52:20,946 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-10-13 19:52:20,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:20,949 INFO L225 Difference]: With dead ends: 1328 [2019-10-13 19:52:20,949 INFO L226 Difference]: Without dead ends: 814 [2019-10-13 19:52:20,951 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 [2019-10-13 19:52:20,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2019-10-13 19:52:21,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 538. [2019-10-13 19:52:21,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-13 19:52:21,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 741 transitions. [2019-10-13 19:52:21,005 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 741 transitions. Word has length 150 [2019-10-13 19:52:21,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:21,006 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 741 transitions. [2019-10-13 19:52:21,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:52:21,006 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 741 transitions. [2019-10-13 19:52:21,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:52:21,008 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:21,008 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, 1, 1] [2019-10-13 19:52:21,009 INFO L410 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:21,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:21,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1749808543, now seen corresponding path program 1 times [2019-10-13 19:52:21,009 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:52:21,009 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487428185] [2019-10-13 19:52:21,010 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:21,010 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:21,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:21,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:52:21,319 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487428185] [2019-10-13 19:52:21,319 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:21,319 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:52:21,319 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391069527] [2019-10-13 19:52:21,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:52:21,320 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:52:21,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:52:21,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:52:21,321 INFO L87 Difference]: Start difference. First operand 538 states and 741 transitions. Second operand 10 states. [2019-10-13 19:52:23,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:23,916 INFO L93 Difference]: Finished difference Result 1328 states and 1913 transitions. [2019-10-13 19:52:23,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:52:23,917 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-10-13 19:52:23,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:23,922 INFO L225 Difference]: With dead ends: 1328 [2019-10-13 19:52:23,922 INFO L226 Difference]: Without dead ends: 814 [2019-10-13 19:52:23,924 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 [2019-10-13 19:52:23,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2019-10-13 19:52:23,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 538. [2019-10-13 19:52:23,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-13 19:52:23,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 734 transitions. [2019-10-13 19:52:23,989 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 734 transitions. Word has length 150 [2019-10-13 19:52:23,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:23,990 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 734 transitions. [2019-10-13 19:52:23,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:52:23,990 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 734 transitions. [2019-10-13 19:52:23,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:52:23,992 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:23,992 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, 1, 1] [2019-10-13 19:52:23,992 INFO L410 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:23,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:23,993 INFO L82 PathProgramCache]: Analyzing trace with hash -936672673, now seen corresponding path program 1 times [2019-10-13 19:52:23,993 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:52:23,993 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824825954] [2019-10-13 19:52:23,993 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:23,993 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:23,994 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:24,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:24,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:52:24,278 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824825954] [2019-10-13 19:52:24,278 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:24,278 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:52:24,279 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947585003] [2019-10-13 19:52:24,279 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:52:24,279 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:52:24,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:52:24,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:52:24,280 INFO L87 Difference]: Start difference. First operand 538 states and 734 transitions. Second operand 10 states. [2019-10-13 19:52:28,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:52:28,847 INFO L93 Difference]: Finished difference Result 1611 states and 2400 transitions. [2019-10-13 19:52:28,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:52:28,848 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-10-13 19:52:28,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:52:28,856 INFO L225 Difference]: With dead ends: 1611 [2019-10-13 19:52:28,857 INFO L226 Difference]: Without dead ends: 1097 [2019-10-13 19:52:28,861 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2019-10-13 19:52:28,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2019-10-13 19:52:29,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 690. [2019-10-13 19:52:29,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2019-10-13 19:52:29,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 916 transitions. [2019-10-13 19:52:29,017 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 916 transitions. Word has length 150 [2019-10-13 19:52:29,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:52:29,018 INFO L462 AbstractCegarLoop]: Abstraction has 690 states and 916 transitions. [2019-10-13 19:52:29,018 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 19:52:29,018 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 916 transitions. [2019-10-13 19:52:29,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-13 19:52:29,024 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:52:29,024 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, 1, 1] [2019-10-13 19:52:29,025 INFO L410 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:52:29,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:52:29,025 INFO L82 PathProgramCache]: Analyzing trace with hash -252094914, now seen corresponding path program 1 times [2019-10-13 19:52:29,025 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:52:29,026 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893834340] [2019-10-13 19:52:29,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:29,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:52:29,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:52:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,244 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-10-13 19:52:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:52:29,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:52:29,499 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893834340] [2019-10-13 19:52:29,500 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:52:29,500 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 19:52:29,500 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319235870] [2019-10-13 19:52:29,501 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 19:52:29,501 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:52:29,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 19:52:29,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:52:29,502 INFO L87 Difference]: Start difference. First operand 690 states and 916 transitions. Second operand 10 states. [2019-10-13 19:52:29,682 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-10-13 19:52:31,718 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 106