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.05.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:50:50,997 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:50:51,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:50:51,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:50:51,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:50:51,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:50:51,022 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:50:51,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:50:51,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:50:51,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:50:51,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:50:51,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:50:51,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:50:51,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:50:51,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:50:51,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:50:51,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:50:51,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:50:51,043 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:50:51,045 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:50:51,046 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:50:51,047 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:50:51,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:50:51,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:50:51,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:50:51,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:50:51,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:50:51,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:50:51,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:50:51,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:50:51,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:50:51,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:50:51,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:50:51,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:50:51,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:50:51,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:50:51,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:50:51,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:50:51,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:50:51,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:50:51,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:50:51,063 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:50:51,084 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:50:51,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:50:51,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:50:51,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:50:51,087 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:50:51,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:50:51,087 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:50:51,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:50:51,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:50:51,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:50:51,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:50:51,089 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:50:51,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:50:51,090 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:50:51,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:50:51,091 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:50:51,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:50:51,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:50:51,091 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:50:51,091 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:50:51,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:50:51,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:50:51,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:50:51,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:50:51,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:50:51,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:50:51,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:50:51,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:50:51,093 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:50:51,362 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:50:51,380 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:50:51,383 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:50:51,385 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:50:51,385 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:50:51,386 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.05.cil.c [2019-10-14 23:50:51,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b29edaa3b/ac9b5a0222054c12b6aba491626aad3a/FLAGc6194820a [2019-10-14 23:50:51,961 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:50:51,962 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/transmitter.05.cil.c [2019-10-14 23:50:51,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b29edaa3b/ac9b5a0222054c12b6aba491626aad3a/FLAGc6194820a [2019-10-14 23:50:52,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b29edaa3b/ac9b5a0222054c12b6aba491626aad3a [2019-10-14 23:50:52,337 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:50:52,338 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:50:52,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:50:52,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:50:52,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:50:52,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:50:52" (1/1) ... [2019-10-14 23:50:52,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1437ab1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:52, skipping insertion in model container [2019-10-14 23:50:52,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:50:52" (1/1) ... [2019-10-14 23:50:52,356 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:50:52,414 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:50:52,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:50:52,687 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:50:52,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:50:52,861 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:50:52,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:52 WrapperNode [2019-10-14 23:50:52,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:50:52,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:50:52,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:50:52,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:50:52,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:52" (1/1) ... [2019-10-14 23:50:52,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:52" (1/1) ... [2019-10-14 23:50:52,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:52" (1/1) ... [2019-10-14 23:50:52,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:52" (1/1) ... [2019-10-14 23:50:52,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:52" (1/1) ... [2019-10-14 23:50:52,920 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:52" (1/1) ... [2019-10-14 23:50:52,927 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:52" (1/1) ... [2019-10-14 23:50:52,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:50:52,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:50:52,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:50:52,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:50:52,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:50:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:50:53,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:50:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2019-10-14 23:50:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2019-10-14 23:50:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2019-10-14 23:50:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2019-10-14 23:50:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2019-10-14 23:50:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2019-10-14 23:50:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2019-10-14 23:50:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2019-10-14 23:50:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2019-10-14 23:50:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2019-10-14 23:50:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2019-10-14 23:50:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2019-10-14 23:50:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2019-10-14 23:50:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2019-10-14 23:50:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2019-10-14 23:50:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2019-10-14 23:50:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2019-10-14 23:50:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2019-10-14 23:50:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2019-10-14 23:50:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2019-10-14 23:50:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2019-10-14 23:50:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2019-10-14 23:50:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2019-10-14 23:50:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2019-10-14 23:50:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2019-10-14 23:50:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2019-10-14 23:50:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:50:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:50:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:50:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure error [2019-10-14 23:50:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2019-10-14 23:50:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2019-10-14 23:50:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2019-10-14 23:50:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2019-10-14 23:50:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2019-10-14 23:50:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2019-10-14 23:50:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2019-10-14 23:50:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure master [2019-10-14 23:50:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2019-10-14 23:50:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2019-10-14 23:50:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2019-10-14 23:50:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2019-10-14 23:50:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2019-10-14 23:50:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2019-10-14 23:50:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2019-10-14 23:50:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2019-10-14 23:50:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2019-10-14 23:50:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2019-10-14 23:50:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2019-10-14 23:50:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2019-10-14 23:50:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2019-10-14 23:50:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2019-10-14 23:50:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2019-10-14 23:50:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2019-10-14 23:50:53,014 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2019-10-14 23:50:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:50:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:50:53,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:50:53,827 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:50:53,827 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-14 23:50:53,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:50:53 BoogieIcfgContainer [2019-10-14 23:50:53,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:50:53,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:50:53,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:50:53,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:50:53,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:50:52" (1/3) ... [2019-10-14 23:50:53,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e14eb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:50:53, skipping insertion in model container [2019-10-14 23:50:53,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:50:52" (2/3) ... [2019-10-14 23:50:53,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e14eb23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:50:53, skipping insertion in model container [2019-10-14 23:50:53,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:50:53" (3/3) ... [2019-10-14 23:50:53,837 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.05.cil.c [2019-10-14 23:50:53,845 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:50:53,853 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:50:53,865 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:50:53,892 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:50:53,892 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:50:53,892 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:50:53,892 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:50:53,893 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:50:53,893 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:50:53,894 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:50:53,894 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:50:53,920 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states. [2019-10-14 23:50:53,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-14 23:50:53,935 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:50:53,937 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] [2019-10-14 23:50:53,939 INFO L410 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:50:53,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:50:53,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1433392200, now seen corresponding path program 1 times [2019-10-14 23:50:53,956 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:50:53,956 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434440951] [2019-10-14 23:50:53,956 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:53,957 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:53,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:50:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,453 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-14 23:50:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:50:54,753 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434440951] [2019-10-14 23:50:54,754 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:50:54,754 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:50:54,755 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443352505] [2019-10-14 23:50:54,760 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:50:54,760 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:50:54,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:50:54,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:50:54,778 INFO L87 Difference]: Start difference. First operand 259 states. Second operand 8 states. [2019-10-14 23:50:55,173 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-10-14 23:50:58,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:50:58,191 INFO L93 Difference]: Finished difference Result 654 states and 1038 transitions. [2019-10-14 23:50:58,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:50:58,193 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 135 [2019-10-14 23:50:58,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:50:58,217 INFO L225 Difference]: With dead ends: 654 [2019-10-14 23:50:58,217 INFO L226 Difference]: Without dead ends: 400 [2019-10-14 23:50:58,228 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:50:58,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2019-10-14 23:50:58,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 250. [2019-10-14 23:50:58,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2019-10-14 23:50:58,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 350 transitions. [2019-10-14 23:50:58,430 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 350 transitions. Word has length 135 [2019-10-14 23:50:58,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:50:58,430 INFO L462 AbstractCegarLoop]: Abstraction has 250 states and 350 transitions. [2019-10-14 23:50:58,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:50:58,431 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 350 transitions. [2019-10-14 23:50:58,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-14 23:50:58,448 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:50:58,449 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] [2019-10-14 23:50:58,449 INFO L410 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:50:58,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:50:58,456 INFO L82 PathProgramCache]: Analyzing trace with hash -1139572410, now seen corresponding path program 1 times [2019-10-14 23:50:58,456 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:50:58,457 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647546969] [2019-10-14 23:50:58,457 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:58,457 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:50:58,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:50:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:50:58,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:50:58,918 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647546969] [2019-10-14 23:50:58,919 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:50:58,919 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:50:58,919 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827267695] [2019-10-14 23:50:58,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:50:58,925 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:50:58,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:50:58,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:50:58,926 INFO L87 Difference]: Start difference. First operand 250 states and 350 transitions. Second operand 9 states. [2019-10-14 23:51:02,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:51:02,968 INFO L93 Difference]: Finished difference Result 963 states and 1454 transitions. [2019-10-14 23:51:02,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-14 23:51:02,969 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 135 [2019-10-14 23:51:02,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:51:02,981 INFO L225 Difference]: With dead ends: 963 [2019-10-14 23:51:02,981 INFO L226 Difference]: Without dead ends: 736 [2019-10-14 23:51:02,985 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:51:02,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2019-10-14 23:51:03,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 477. [2019-10-14 23:51:03,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2019-10-14 23:51:03,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 675 transitions. [2019-10-14 23:51:03,147 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 675 transitions. Word has length 135 [2019-10-14 23:51:03,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:51:03,149 INFO L462 AbstractCegarLoop]: Abstraction has 477 states and 675 transitions. [2019-10-14 23:51:03,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:51:03,150 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 675 transitions. [2019-10-14 23:51:03,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-14 23:51:03,156 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:51:03,157 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:51:03,157 INFO L410 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:51:03,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:51:03,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1111869827, now seen corresponding path program 1 times [2019-10-14 23:51:03,158 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:51:03,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604167642] [2019-10-14 23:51:03,159 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:03,159 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:03,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:51:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,385 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-14 23:51:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:51:03,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604167642] [2019-10-14 23:51:03,602 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:51:03,603 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:51:03,603 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240527671] [2019-10-14 23:51:03,605 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:51:03,605 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:51:03,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:51:03,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:51:03,606 INFO L87 Difference]: Start difference. First operand 477 states and 675 transitions. Second operand 10 states. [2019-10-14 23:51:06,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:51:06,184 INFO L93 Difference]: Finished difference Result 1181 states and 1743 transitions. [2019-10-14 23:51:06,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:51:06,184 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 135 [2019-10-14 23:51:06,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:51:06,190 INFO L225 Difference]: With dead ends: 1181 [2019-10-14 23:51:06,190 INFO L226 Difference]: Without dead ends: 727 [2019-10-14 23:51:06,192 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:51:06,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2019-10-14 23:51:06,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 477. [2019-10-14 23:51:06,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2019-10-14 23:51:06,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 668 transitions. [2019-10-14 23:51:06,251 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 668 transitions. Word has length 135 [2019-10-14 23:51:06,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:51:06,252 INFO L462 AbstractCegarLoop]: Abstraction has 477 states and 668 transitions. [2019-10-14 23:51:06,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:51:06,252 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 668 transitions. [2019-10-14 23:51:06,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-14 23:51:06,254 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:51:06,254 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] [2019-10-14 23:51:06,254 INFO L410 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:51:06,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:51:06,255 INFO L82 PathProgramCache]: Analyzing trace with hash 732816775, now seen corresponding path program 1 times [2019-10-14 23:51:06,255 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:51:06,255 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869153596] [2019-10-14 23:51:06,255 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:06,256 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:06,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:51:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:06,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:51:06,561 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869153596] [2019-10-14 23:51:06,561 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:51:06,561 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:51:06,562 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714354493] [2019-10-14 23:51:06,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:51:06,563 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:51:06,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:51:06,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:51:06,564 INFO L87 Difference]: Start difference. First operand 477 states and 668 transitions. Second operand 10 states. [2019-10-14 23:51:09,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:51:09,189 INFO L93 Difference]: Finished difference Result 1177 states and 1721 transitions. [2019-10-14 23:51:09,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:51:09,190 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 135 [2019-10-14 23:51:09,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:51:09,195 INFO L225 Difference]: With dead ends: 1177 [2019-10-14 23:51:09,195 INFO L226 Difference]: Without dead ends: 723 [2019-10-14 23:51:09,197 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:51:09,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2019-10-14 23:51:09,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 477. [2019-10-14 23:51:09,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2019-10-14 23:51:09,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 661 transitions. [2019-10-14 23:51:09,264 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 661 transitions. Word has length 135 [2019-10-14 23:51:09,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:51:09,264 INFO L462 AbstractCegarLoop]: Abstraction has 477 states and 661 transitions. [2019-10-14 23:51:09,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:51:09,265 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 661 transitions. [2019-10-14 23:51:09,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-14 23:51:09,266 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:51:09,267 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] [2019-10-14 23:51:09,267 INFO L410 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:51:09,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:51:09,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1634715389, now seen corresponding path program 1 times [2019-10-14 23:51:09,267 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:51:09,268 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228199367] [2019-10-14 23:51:09,268 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:09,268 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:09,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:51:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:51:09,551 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228199367] [2019-10-14 23:51:09,552 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:51:09,552 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:51:09,552 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763634793] [2019-10-14 23:51:09,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:51:09,553 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:51:09,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:51:09,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:51:09,553 INFO L87 Difference]: Start difference. First operand 477 states and 661 transitions. Second operand 10 states. [2019-10-14 23:51:11,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:51:11,720 INFO L93 Difference]: Finished difference Result 1173 states and 1699 transitions. [2019-10-14 23:51:11,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:51:11,721 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 135 [2019-10-14 23:51:11,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:51:11,728 INFO L225 Difference]: With dead ends: 1173 [2019-10-14 23:51:11,728 INFO L226 Difference]: Without dead ends: 719 [2019-10-14 23:51:11,731 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:51:11,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2019-10-14 23:51:11,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 477. [2019-10-14 23:51:11,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2019-10-14 23:51:11,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 654 transitions. [2019-10-14 23:51:11,810 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 654 transitions. Word has length 135 [2019-10-14 23:51:11,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:51:11,810 INFO L462 AbstractCegarLoop]: Abstraction has 477 states and 654 transitions. [2019-10-14 23:51:11,810 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:51:11,810 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 654 transitions. [2019-10-14 23:51:11,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-14 23:51:11,814 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:51:11,815 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] [2019-10-14 23:51:11,815 INFO L410 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:51:11,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:51:11,815 INFO L82 PathProgramCache]: Analyzing trace with hash -325614073, now seen corresponding path program 1 times [2019-10-14 23:51:11,816 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:51:11,816 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679184248] [2019-10-14 23:51:11,816 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:11,816 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:11,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:51:11,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:11,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:12,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:12,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:12,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:51:12,133 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679184248] [2019-10-14 23:51:12,133 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:51:12,134 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:51:12,134 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568516349] [2019-10-14 23:51:12,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:51:12,135 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:51:12,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:51:12,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:51:12,136 INFO L87 Difference]: Start difference. First operand 477 states and 654 transitions. Second operand 10 states. [2019-10-14 23:51:14,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:51:14,260 INFO L93 Difference]: Finished difference Result 1169 states and 1677 transitions. [2019-10-14 23:51:14,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:51:14,260 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 135 [2019-10-14 23:51:14,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:51:14,265 INFO L225 Difference]: With dead ends: 1169 [2019-10-14 23:51:14,265 INFO L226 Difference]: Without dead ends: 715 [2019-10-14 23:51:14,267 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:51:14,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2019-10-14 23:51:14,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 477. [2019-10-14 23:51:14,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2019-10-14 23:51:14,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 647 transitions. [2019-10-14 23:51:14,324 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 647 transitions. Word has length 135 [2019-10-14 23:51:14,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:51:14,324 INFO L462 AbstractCegarLoop]: Abstraction has 477 states and 647 transitions. [2019-10-14 23:51:14,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:51:14,325 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 647 transitions. [2019-10-14 23:51:14,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-14 23:51:14,327 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:51:14,327 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] [2019-10-14 23:51:14,327 INFO L410 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:51:14,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:51:14,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1102088323, now seen corresponding path program 1 times [2019-10-14 23:51:14,328 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:51:14,328 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422110558] [2019-10-14 23:51:14,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:14,328 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:14,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:51:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:14,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:51:14,591 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422110558] [2019-10-14 23:51:14,591 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:51:14,591 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:51:14,591 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610836593] [2019-10-14 23:51:14,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:51:14,592 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:51:14,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:51:14,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:51:14,593 INFO L87 Difference]: Start difference. First operand 477 states and 647 transitions. Second operand 10 states. [2019-10-14 23:51:17,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:51:17,003 INFO L93 Difference]: Finished difference Result 1165 states and 1655 transitions. [2019-10-14 23:51:17,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:51:17,003 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 135 [2019-10-14 23:51:17,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:51:17,007 INFO L225 Difference]: With dead ends: 1165 [2019-10-14 23:51:17,008 INFO L226 Difference]: Without dead ends: 711 [2019-10-14 23:51:17,010 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:51:17,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2019-10-14 23:51:17,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 477. [2019-10-14 23:51:17,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2019-10-14 23:51:17,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 640 transitions. [2019-10-14 23:51:17,065 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 640 transitions. Word has length 135 [2019-10-14 23:51:17,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:51:17,066 INFO L462 AbstractCegarLoop]: Abstraction has 477 states and 640 transitions. [2019-10-14 23:51:17,066 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:51:17,066 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 640 transitions. [2019-10-14 23:51:17,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-14 23:51:17,068 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:51:17,068 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] [2019-10-14 23:51:17,068 INFO L410 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:51:17,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:51:17,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1220529797, now seen corresponding path program 1 times [2019-10-14 23:51:17,069 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:51:17,069 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639784627] [2019-10-14 23:51:17,069 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:17,069 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:17,069 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:51:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:17,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:51:17,333 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639784627] [2019-10-14 23:51:17,333 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:51:17,333 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:51:17,333 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585755225] [2019-10-14 23:51:17,334 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:51:17,334 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:51:17,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:51:17,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:51:17,335 INFO L87 Difference]: Start difference. First operand 477 states and 640 transitions. Second operand 10 states. [2019-10-14 23:51:20,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:51:20,626 INFO L93 Difference]: Finished difference Result 1412 states and 2080 transitions. [2019-10-14 23:51:20,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:51:20,626 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 135 [2019-10-14 23:51:20,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:51:20,632 INFO L225 Difference]: With dead ends: 1412 [2019-10-14 23:51:20,632 INFO L226 Difference]: Without dead ends: 958 [2019-10-14 23:51:20,635 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2019-10-14 23:51:20,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2019-10-14 23:51:20,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 609. [2019-10-14 23:51:20,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2019-10-14 23:51:20,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 796 transitions. [2019-10-14 23:51:20,708 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 796 transitions. Word has length 135 [2019-10-14 23:51:20,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:51:20,709 INFO L462 AbstractCegarLoop]: Abstraction has 609 states and 796 transitions. [2019-10-14 23:51:20,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:51:20,709 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 796 transitions. [2019-10-14 23:51:20,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-14 23:51:20,711 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:51:20,711 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] [2019-10-14 23:51:20,711 INFO L410 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:51:20,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:51:20,712 INFO L82 PathProgramCache]: Analyzing trace with hash -1865289952, now seen corresponding path program 1 times [2019-10-14 23:51:20,712 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:51:20,712 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952796727] [2019-10-14 23:51:20,712 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:20,712 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:20,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:51:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:20,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:51:20,988 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952796727] [2019-10-14 23:51:20,988 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:51:20,988 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:51:20,988 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315274361] [2019-10-14 23:51:20,989 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:51:20,989 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:51:20,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:51:20,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:51:20,990 INFO L87 Difference]: Start difference. First operand 609 states and 796 transitions. Second operand 10 states. [2019-10-14 23:51:24,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:51:24,543 INFO L93 Difference]: Finished difference Result 1714 states and 2452 transitions. [2019-10-14 23:51:24,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:51:24,543 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 135 [2019-10-14 23:51:24,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:51:24,553 INFO L225 Difference]: With dead ends: 1714 [2019-10-14 23:51:24,554 INFO L226 Difference]: Without dead ends: 1128 [2019-10-14 23:51:24,558 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2019-10-14 23:51:24,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-10-14 23:51:24,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 741. [2019-10-14 23:51:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2019-10-14 23:51:24,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 948 transitions. [2019-10-14 23:51:24,716 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 948 transitions. Word has length 135 [2019-10-14 23:51:24,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:51:24,719 INFO L462 AbstractCegarLoop]: Abstraction has 741 states and 948 transitions. [2019-10-14 23:51:24,719 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:51:24,719 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 948 transitions. [2019-10-14 23:51:24,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2019-10-14 23:51:24,722 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:51:24,722 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] [2019-10-14 23:51:24,723 INFO L410 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:51:24,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:51:24,723 INFO L82 PathProgramCache]: Analyzing trace with hash -592373637, now seen corresponding path program 1 times [2019-10-14 23:51:24,724 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:51:24,724 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617047416] [2019-10-14 23:51:24,724 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:24,724 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:51:24,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:51:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:24,887 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-10-14 23:51:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:24,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:24,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:25,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:25,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:51:25,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:51:25,107 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617047416] [2019-10-14 23:51:25,107 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:51:25,108 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:51:25,108 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338408554] [2019-10-14 23:51:25,109 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:51:25,110 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:51:25,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:51:25,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:51:25,116 INFO L87 Difference]: Start difference. First operand 741 states and 948 transitions. Second operand 10 states. [2019-10-14 23:51:25,264 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-10-14 23:51:27,134 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 91