/usr/bin/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-fb55353 [2019-11-06 22:24:58,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 22:24:58,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 22:24:58,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 22:24:58,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 22:24:58,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 22:24:58,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 22:24:58,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 22:24:58,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 22:24:58,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 22:24:58,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 22:24:58,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 22:24:58,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 22:24:58,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 22:24:58,078 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 22:24:58,079 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 22:24:58,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 22:24:58,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 22:24:58,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 22:24:58,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 22:24:58,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 22:24:58,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 22:24:58,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 22:24:58,098 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 22:24:58,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 22:24:58,103 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 22:24:58,103 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 22:24:58,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 22:24:58,105 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 22:24:58,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 22:24:58,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 22:24:58,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 22:24:58,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 22:24:58,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 22:24:58,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 22:24:58,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 22:24:58,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 22:24:58,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 22:24:58,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 22:24:58,121 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 22:24:58,122 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 22:24:58,123 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 [2019-11-06 22:24:58,143 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 22:24:58,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 22:24:58,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 22:24:58,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 22:24:58,145 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 22:24:58,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 22:24:58,146 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 22:24:58,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 22:24:58,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 22:24:58,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 22:24:58,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 22:24:58,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 22:24:58,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 22:24:58,147 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 22:24:58,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 22:24:58,148 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 22:24:58,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 22:24:58,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 22:24:58,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 22:24:58,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 22:24:58,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 22:24:58,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 22:24:58,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 22:24:58,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 22:24:58,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 22:24:58,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 22:24:58,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 22:24:58,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 22:24:58,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 22:24:58,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 22:24:58,420 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 22:24:58,423 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 22:24:58,425 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 22:24:58,425 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 22:24:58,426 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.06.cil.c [2019-11-06 22:24:58,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2abc9237a/50649f38817c4ffcab58a11ef91c9b4f/FLAG3fc4d8f8c [2019-11-06 22:24:58,989 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 22:24:58,990 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.06.cil.c [2019-11-06 22:24:59,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2abc9237a/50649f38817c4ffcab58a11ef91c9b4f/FLAG3fc4d8f8c [2019-11-06 22:24:59,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2abc9237a/50649f38817c4ffcab58a11ef91c9b4f [2019-11-06 22:24:59,358 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 22:24:59,359 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 22:24:59,360 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 22:24:59,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 22:24:59,364 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 22:24:59,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:59" (1/1) ... [2019-11-06 22:24:59,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c304c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:59, skipping insertion in model container [2019-11-06 22:24:59,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:59" (1/1) ... [2019-11-06 22:24:59,375 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 22:24:59,442 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 22:24:59,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:24:59,720 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 22:24:59,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 22:24:59,896 INFO L192 MainTranslator]: Completed translation [2019-11-06 22:24:59,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:59 WrapperNode [2019-11-06 22:24:59,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 22:24:59,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 22:24:59,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 22:24:59,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 22:24:59,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:59" (1/1) ... [2019-11-06 22:24:59,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:59" (1/1) ... [2019-11-06 22:24:59,920 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:59" (1/1) ... [2019-11-06 22:24:59,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:59" (1/1) ... [2019-11-06 22:24:59,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:59" (1/1) ... [2019-11-06 22:24:59,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:59" (1/1) ... [2019-11-06 22:24:59,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:59" (1/1) ... [2019-11-06 22:24:59,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 22:24:59,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 22:24:59,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 22:24:59,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 22:24:59,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:59" (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 [2019-11-06 22:25:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 22:25:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 22:25:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-11-06 22:25:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2019-11-06 22:25:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2019-11-06 22:25:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2019-11-06 22:25:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2019-11-06 22:25:00,048 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2019-11-06 22:25:00,048 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2019-11-06 22:25:00,048 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2019-11-06 22:25:00,048 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2019-11-06 22:25:00,048 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2019-11-06 22:25:00,049 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2019-11-06 22:25:00,049 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2019-11-06 22:25:00,049 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2019-11-06 22:25:00,049 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2019-11-06 22:25:00,049 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2019-11-06 22:25:00,049 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-11-06 22:25:00,050 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-11-06 22:25:00,050 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-11-06 22:25:00,050 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-11-06 22:25:00,050 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-11-06 22:25:00,050 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-11-06 22:25:00,050 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-11-06 22:25:00,050 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2019-11-06 22:25:00,051 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-11-06 22:25:00,051 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-11-06 22:25:00,051 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-11-06 22:25:00,051 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-11-06 22:25:00,051 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-11-06 22:25:00,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 22:25:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 22:25:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 22:25:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-11-06 22:25:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2019-11-06 22:25:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2019-11-06 22:25:00,052 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2019-11-06 22:25:00,053 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2019-11-06 22:25:00,053 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2019-11-06 22:25:00,053 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2019-11-06 22:25:00,053 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2019-11-06 22:25:00,053 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2019-11-06 22:25:00,053 INFO L130 BoogieDeclarations]: Found specification of procedure master [2019-11-06 22:25:00,053 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2019-11-06 22:25:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2019-11-06 22:25:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2019-11-06 22:25:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2019-11-06 22:25:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2019-11-06 22:25:00,054 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2019-11-06 22:25:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-11-06 22:25:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-11-06 22:25:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-11-06 22:25:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-11-06 22:25:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-11-06 22:25:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-11-06 22:25:00,055 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-11-06 22:25:00,056 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-11-06 22:25:00,056 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-11-06 22:25:00,056 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-11-06 22:25:00,056 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-11-06 22:25:00,056 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-11-06 22:25:00,056 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 22:25:00,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 22:25:00,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 22:25:00,910 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 22:25:00,911 INFO L284 CfgBuilder]: Removed 10 assume(true) statements. [2019-11-06 22:25:00,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:25:00 BoogieIcfgContainer [2019-11-06 22:25:00,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 22:25:00,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 22:25:00,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 22:25:00,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 22:25:00,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:24:59" (1/3) ... [2019-11-06 22:25:00,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4270ec3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:25:00, skipping insertion in model container [2019-11-06 22:25:00,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:59" (2/3) ... [2019-11-06 22:25:00,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4270ec3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:25:00, skipping insertion in model container [2019-11-06 22:25:00,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:25:00" (3/3) ... [2019-11-06 22:25:00,921 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.06.cil.c [2019-11-06 22:25:00,932 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 22:25:00,941 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 22:25:00,953 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 22:25:00,984 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 22:25:00,984 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 22:25:00,985 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 22:25:00,985 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 22:25:00,985 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 22:25:00,985 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 22:25:00,986 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 22:25:00,986 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 22:25:01,015 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states. [2019-11-06 22:25:01,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-06 22:25:01,033 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:25:01,034 INFO L410 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] [2019-11-06 22:25:01,037 INFO L410 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:25:01,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:25:01,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1616556766, now seen corresponding path program 1 times [2019-11-06 22:25:01,053 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:25:01,054 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142925315] [2019-11-06 22:25:01,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:25:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,579 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-11-06 22:25:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:25:01,920 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142925315] [2019-11-06 22:25:01,921 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:25:01,921 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-06 22:25:01,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474057314] [2019-11-06 22:25:01,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-06 22:25:01,930 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:25:01,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-06 22:25:01,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-06 22:25:01,947 INFO L87 Difference]: Start difference. First operand 289 states. Second operand 8 states. [2019-11-06 22:25:02,141 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-11-06 22:25:02,392 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-11-06 22:25:05,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:25:05,291 INFO L93 Difference]: Finished difference Result 732 states and 1170 transitions. [2019-11-06 22:25:05,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-06 22:25:05,294 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 150 [2019-11-06 22:25:05,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:25:05,314 INFO L225 Difference]: With dead ends: 732 [2019-11-06 22:25:05,314 INFO L226 Difference]: Without dead ends: 451 [2019-11-06 22:25:05,321 INFO L630 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 [2019-11-06 22:25:05,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2019-11-06 22:25:05,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 280. [2019-11-06 22:25:05,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-11-06 22:25:05,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 396 transitions. [2019-11-06 22:25:05,437 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 396 transitions. Word has length 150 [2019-11-06 22:25:05,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:25:05,437 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 396 transitions. [2019-11-06 22:25:05,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-06 22:25:05,438 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 396 transitions. [2019-11-06 22:25:05,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-06 22:25:05,443 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:25:05,443 INFO L410 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] [2019-11-06 22:25:05,443 INFO L410 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:25:05,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:25:05,444 INFO L82 PathProgramCache]: Analyzing trace with hash -668504800, now seen corresponding path program 1 times [2019-11-06 22:25:05,444 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:25:05,444 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962464754] [2019-11-06 22:25:05,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:25:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:05,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:25:05,925 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962464754] [2019-11-06 22:25:05,925 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:25:05,925 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-06 22:25:05,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641596126] [2019-11-06 22:25:05,927 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 22:25:05,927 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:25:05,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 22:25:05,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-06 22:25:05,928 INFO L87 Difference]: Start difference. First operand 280 states and 396 transitions. Second operand 9 states. [2019-11-06 22:25:09,210 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2019-11-06 22:25:11,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:25:11,327 INFO L93 Difference]: Finished difference Result 1091 states and 1659 transitions. [2019-11-06 22:25:11,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-06 22:25:11,327 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 150 [2019-11-06 22:25:11,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:25:11,336 INFO L225 Difference]: With dead ends: 1091 [2019-11-06 22:25:11,336 INFO L226 Difference]: Without dead ends: 835 [2019-11-06 22:25:11,338 INFO L630 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 [2019-11-06 22:25:11,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2019-11-06 22:25:11,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 538. [2019-11-06 22:25:11,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-06 22:25:11,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 769 transitions. [2019-11-06 22:25:11,426 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 769 transitions. Word has length 150 [2019-11-06 22:25:11,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:25:11,426 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 769 transitions. [2019-11-06 22:25:11,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 22:25:11,427 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 769 transitions. [2019-11-06 22:25:11,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-06 22:25:11,430 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:25:11,430 INFO L410 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] [2019-11-06 22:25:11,430 INFO L410 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:25:11,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:25:11,431 INFO L82 PathProgramCache]: Analyzing trace with hash 989639713, now seen corresponding path program 1 times [2019-11-06 22:25:11,431 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:25:11,431 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475970522] [2019-11-06 22:25:11,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:25:11,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:11,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:25:11,779 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475970522] [2019-11-06 22:25:11,779 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:25:11,779 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:25:11,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370514647] [2019-11-06 22:25:11,780 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:25:11,780 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:25:11,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:25:11,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:25:11,781 INFO L87 Difference]: Start difference. First operand 538 states and 769 transitions. Second operand 10 states. [2019-11-06 22:25:14,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:25:14,909 INFO L93 Difference]: Finished difference Result 1340 states and 1993 transitions. [2019-11-06 22:25:14,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:25:14,910 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-11-06 22:25:14,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:25:14,917 INFO L225 Difference]: With dead ends: 1340 [2019-11-06 22:25:14,917 INFO L226 Difference]: Without dead ends: 826 [2019-11-06 22:25:14,920 INFO L630 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 [2019-11-06 22:25:14,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2019-11-06 22:25:14,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 538. [2019-11-06 22:25:14,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-06 22:25:15,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 762 transitions. [2019-11-06 22:25:15,003 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 762 transitions. Word has length 150 [2019-11-06 22:25:15,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:25:15,003 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 762 transitions. [2019-11-06 22:25:15,003 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:25:15,003 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 762 transitions. [2019-11-06 22:25:15,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-06 22:25:15,006 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:25:15,006 INFO L410 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] [2019-11-06 22:25:15,007 INFO L410 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:25:15,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:25:15,007 INFO L82 PathProgramCache]: Analyzing trace with hash 479666017, now seen corresponding path program 1 times [2019-11-06 22:25:15,007 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:25:15,007 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535101465] [2019-11-06 22:25:15,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:25:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:15,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:25:15,286 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535101465] [2019-11-06 22:25:15,286 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:25:15,286 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:25:15,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785744946] [2019-11-06 22:25:15,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:25:15,287 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:25:15,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:25:15,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:25:15,288 INFO L87 Difference]: Start difference. First operand 538 states and 762 transitions. Second operand 10 states. [2019-11-06 22:25:15,416 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-11-06 22:25:18,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:25:18,024 INFO L93 Difference]: Finished difference Result 1336 states and 1971 transitions. [2019-11-06 22:25:18,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:25:18,024 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-11-06 22:25:18,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:25:18,030 INFO L225 Difference]: With dead ends: 1336 [2019-11-06 22:25:18,030 INFO L226 Difference]: Without dead ends: 822 [2019-11-06 22:25:18,033 INFO L630 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 [2019-11-06 22:25:18,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2019-11-06 22:25:18,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 538. [2019-11-06 22:25:18,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-06 22:25:18,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 755 transitions. [2019-11-06 22:25:18,183 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 755 transitions. Word has length 150 [2019-11-06 22:25:18,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:25:18,183 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 755 transitions. [2019-11-06 22:25:18,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:25:18,184 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 755 transitions. [2019-11-06 22:25:18,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-06 22:25:18,188 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:25:18,189 INFO L410 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] [2019-11-06 22:25:18,189 INFO L410 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:25:18,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:25:18,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1570742881, now seen corresponding path program 1 times [2019-11-06 22:25:18,190 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:25:18,191 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576387442] [2019-11-06 22:25:18,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:25:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,375 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-11-06 22:25:18,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:18,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:25:18,538 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576387442] [2019-11-06 22:25:18,538 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:25:18,538 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:25:18,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536180310] [2019-11-06 22:25:18,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:25:18,539 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:25:18,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:25:18,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:25:18,540 INFO L87 Difference]: Start difference. First operand 538 states and 755 transitions. Second operand 10 states. [2019-11-06 22:25:21,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:25:21,513 INFO L93 Difference]: Finished difference Result 1332 states and 1949 transitions. [2019-11-06 22:25:21,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:25:21,513 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-11-06 22:25:21,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:25:21,519 INFO L225 Difference]: With dead ends: 1332 [2019-11-06 22:25:21,520 INFO L226 Difference]: Without dead ends: 818 [2019-11-06 22:25:21,522 INFO L630 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 [2019-11-06 22:25:21,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2019-11-06 22:25:21,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 538. [2019-11-06 22:25:21,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-06 22:25:21,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 748 transitions. [2019-11-06 22:25:21,584 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 748 transitions. Word has length 150 [2019-11-06 22:25:21,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:25:21,585 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 748 transitions. [2019-11-06 22:25:21,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:25:21,585 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 748 transitions. [2019-11-06 22:25:21,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-06 22:25:21,587 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:25:21,587 INFO L410 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] [2019-11-06 22:25:21,588 INFO L410 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:25:21,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:25:21,588 INFO L82 PathProgramCache]: Analyzing trace with hash -2112055073, now seen corresponding path program 1 times [2019-11-06 22:25:21,588 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:25:21,588 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517668175] [2019-11-06 22:25:21,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:25:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:21,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:25:21,913 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517668175] [2019-11-06 22:25:21,913 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:25:21,914 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:25:21,914 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341729354] [2019-11-06 22:25:21,914 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:25:21,915 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:25:21,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:25:21,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:25:21,915 INFO L87 Difference]: Start difference. First operand 538 states and 748 transitions. Second operand 10 states. [2019-11-06 22:25:24,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:25:24,838 INFO L93 Difference]: Finished difference Result 1328 states and 1927 transitions. [2019-11-06 22:25:24,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:25:24,839 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-11-06 22:25:24,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:25:24,844 INFO L225 Difference]: With dead ends: 1328 [2019-11-06 22:25:24,847 INFO L226 Difference]: Without dead ends: 814 [2019-11-06 22:25:24,849 INFO L630 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 [2019-11-06 22:25:24,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2019-11-06 22:25:24,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 538. [2019-11-06 22:25:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-06 22:25:24,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 741 transitions. [2019-11-06 22:25:24,922 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 741 transitions. Word has length 150 [2019-11-06 22:25:24,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:25:24,923 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 741 transitions. [2019-11-06 22:25:24,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:25:24,923 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 741 transitions. [2019-11-06 22:25:24,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-06 22:25:24,927 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:25:24,927 INFO L410 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] [2019-11-06 22:25:24,927 INFO L410 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:25:24,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:25:24,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1749808543, now seen corresponding path program 1 times [2019-11-06 22:25:24,928 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:25:24,928 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071411976] [2019-11-06 22:25:24,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:25:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:25,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:25:25,263 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071411976] [2019-11-06 22:25:25,263 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:25:25,263 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:25:25,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849562148] [2019-11-06 22:25:25,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:25:25,264 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:25:25,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:25:25,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:25:25,265 INFO L87 Difference]: Start difference. First operand 538 states and 741 transitions. Second operand 10 states. [2019-11-06 22:25:27,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:25:27,995 INFO L93 Difference]: Finished difference Result 1328 states and 1913 transitions. [2019-11-06 22:25:27,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-06 22:25:27,996 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-11-06 22:25:27,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:25:28,000 INFO L225 Difference]: With dead ends: 1328 [2019-11-06 22:25:28,000 INFO L226 Difference]: Without dead ends: 814 [2019-11-06 22:25:28,002 INFO L630 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 [2019-11-06 22:25:28,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2019-11-06 22:25:28,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 538. [2019-11-06 22:25:28,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-11-06 22:25:28,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 734 transitions. [2019-11-06 22:25:28,068 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 734 transitions. Word has length 150 [2019-11-06 22:25:28,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:25:28,069 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 734 transitions. [2019-11-06 22:25:28,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:25:28,069 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 734 transitions. [2019-11-06 22:25:28,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-06 22:25:28,072 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:25:28,072 INFO L410 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] [2019-11-06 22:25:28,072 INFO L410 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:25:28,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:25:28,073 INFO L82 PathProgramCache]: Analyzing trace with hash -936672673, now seen corresponding path program 1 times [2019-11-06 22:25:28,073 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:25:28,073 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907448220] [2019-11-06 22:25:28,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:25:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,256 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-11-06 22:25:28,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:28,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:25:28,426 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907448220] [2019-11-06 22:25:28,426 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:25:28,426 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:25:28,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918229016] [2019-11-06 22:25:28,427 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:25:28,428 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:25:28,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:25:28,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:25:28,428 INFO L87 Difference]: Start difference. First operand 538 states and 734 transitions. Second operand 10 states. [2019-11-06 22:25:32,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 22:25:32,980 INFO L93 Difference]: Finished difference Result 1611 states and 2400 transitions. [2019-11-06 22:25:32,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-06 22:25:32,981 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 150 [2019-11-06 22:25:32,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 22:25:32,991 INFO L225 Difference]: With dead ends: 1611 [2019-11-06 22:25:32,991 INFO L226 Difference]: Without dead ends: 1097 [2019-11-06 22:25:32,996 INFO L630 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 [2019-11-06 22:25:32,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2019-11-06 22:25:33,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 690. [2019-11-06 22:25:33,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2019-11-06 22:25:33,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 916 transitions. [2019-11-06 22:25:33,157 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 916 transitions. Word has length 150 [2019-11-06 22:25:33,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 22:25:33,157 INFO L462 AbstractCegarLoop]: Abstraction has 690 states and 916 transitions. [2019-11-06 22:25:33,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 22:25:33,158 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 916 transitions. [2019-11-06 22:25:33,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-11-06 22:25:33,161 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 22:25:33,161 INFO L410 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] [2019-11-06 22:25:33,162 INFO L410 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 22:25:33,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 22:25:33,162 INFO L82 PathProgramCache]: Analyzing trace with hash -252094914, now seen corresponding path program 1 times [2019-11-06 22:25:33,163 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 22:25:33,163 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001263849] [2019-11-06 22:25:33,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 22:25:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,386 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2019-11-06 22:25:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 22:25:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 22:25:33,608 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001263849] [2019-11-06 22:25:33,608 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 22:25:33,608 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 22:25:33,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068075124] [2019-11-06 22:25:33,609 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 22:25:33,610 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 22:25:33,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 22:25:33,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-06 22:25:33,611 INFO L87 Difference]: Start difference. First operand 690 states and 916 transitions. Second operand 10 states. [2019-11-06 22:25:33,776 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-11-06 22:25:36,085 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 106