/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 05:21:02,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 05:21:02,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 05:21:03,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 05:21:03,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 05:21:03,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 05:21:03,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 05:21:03,023 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 05:21:03,026 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 05:21:03,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 05:21:03,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 05:21:03,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 05:21:03,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 05:21:03,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 05:21:03,035 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 05:21:03,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 05:21:03,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 05:21:03,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 05:21:03,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 05:21:03,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 05:21:03,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 05:21:03,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 05:21:03,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 05:21:03,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 05:21:03,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 05:21:03,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 05:21:03,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 05:21:03,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 05:21:03,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 05:21:03,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 05:21:03,073 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 05:21:03,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 05:21:03,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 05:21:03,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 05:21:03,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 05:21:03,077 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 05:21:03,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 05:21:03,078 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 05:21:03,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 05:21:03,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 05:21:03,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 05:21:03,081 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-19 05:21:03,122 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 05:21:03,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 05:21:03,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 05:21:03,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 05:21:03,125 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 05:21:03,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 05:21:03,126 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 05:21:03,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 05:21:03,126 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 05:21:03,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 05:21:03,127 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 05:21:03,127 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 05:21:03,128 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 05:21:03,128 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 05:21:03,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 05:21:03,129 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 05:21:03,129 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 05:21:03,129 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 05:21:03,129 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 05:21:03,129 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 05:21:03,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 05:21:03,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 05:21:03,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 05:21:03,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 05:21:03,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 05:21:03,130 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 05:21:03,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 05:21:03,131 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 05:21:03,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 05:21:03,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3; [2020-08-19 05:21:03,402 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 05:21:03,421 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 05:21:03,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 05:21:03,429 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 05:21:03,429 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 05:21:03,430 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-08-19 05:21:03,499 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e87f2bc19/6ae235e527254f01b001cfcb91418b13/FLAGc8a4eda45 [2020-08-19 05:21:04,003 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 05:21:04,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-08-19 05:21:04,018 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e87f2bc19/6ae235e527254f01b001cfcb91418b13/FLAGc8a4eda45 [2020-08-19 05:21:04,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e87f2bc19/6ae235e527254f01b001cfcb91418b13 [2020-08-19 05:21:04,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 05:21:04,319 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 05:21:04,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 05:21:04,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 05:21:04,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 05:21:04,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:21:04" (1/1) ... [2020-08-19 05:21:04,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a48022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:21:04, skipping insertion in model container [2020-08-19 05:21:04,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 05:21:04" (1/1) ... [2020-08-19 05:21:04,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 05:21:04,398 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 05:21:04,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:21:04,757 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 05:21:04,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 05:21:05,008 INFO L208 MainTranslator]: Completed translation [2020-08-19 05:21:05,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:21:05 WrapperNode [2020-08-19 05:21:05,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 05:21:05,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 05:21:05,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 05:21:05,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 05:21:05,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:21:05" (1/1) ... [2020-08-19 05:21:05,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:21:05" (1/1) ... [2020-08-19 05:21:05,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:21:05" (1/1) ... [2020-08-19 05:21:05,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:21:05" (1/1) ... [2020-08-19 05:21:05,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:21:05" (1/1) ... [2020-08-19 05:21:05,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:21:05" (1/1) ... [2020-08-19 05:21:05,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:21:05" (1/1) ... [2020-08-19 05:21:05,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 05:21:05,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 05:21:05,136 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 05:21:05,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 05:21:05,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:21:05" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-19 05:21:05,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 05:21:05,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 05:21:05,214 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-19 05:21:05,215 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-19 05:21:05,215 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-19 05:21:05,215 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-19 05:21:05,216 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-19 05:21:05,216 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-19 05:21:05,216 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-19 05:21:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-19 05:21:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-19 05:21:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-19 05:21:05,217 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-19 05:21:05,218 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-19 05:21:05,218 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-19 05:21:05,219 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-19 05:21:05,219 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-19 05:21:05,219 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit14 [2020-08-19 05:21:05,219 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-19 05:21:05,219 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-19 05:21:05,219 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-19 05:21:05,220 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-19 05:21:05,220 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-19 05:21:05,220 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-19 05:21:05,220 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-19 05:21:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-19 05:21:05,221 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-19 05:21:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-19 05:21:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-19 05:21:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-19 05:21:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-19 05:21:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-19 05:21:05,222 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered [2020-08-19 05:21:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-19 05:21:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-19 05:21:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-19 05:21:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-19 05:21:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-19 05:21:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-19 05:21:05,223 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-19 05:21:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-19 05:21:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-19 05:21:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-19 05:21:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-19 05:21:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-19 05:21:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-19 05:21:05,224 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 05:21:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 05:21:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 05:21:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-19 05:21:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-19 05:21:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-19 05:21:05,225 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-19 05:21:05,226 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-19 05:21:05,226 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-19 05:21:05,226 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-19 05:21:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-19 05:21:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-19 05:21:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-19 05:21:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-19 05:21:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-19 05:21:05,227 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-19 05:21:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-19 05:21:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-19 05:21:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit14_triggered [2020-08-19 05:21:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-19 05:21:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-19 05:21:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-19 05:21:05,228 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-19 05:21:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-19 05:21:05,229 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-19 05:21:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-19 05:21:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-19 05:21:05,230 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-19 05:21:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-19 05:21:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-19 05:21:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-19 05:21:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-19 05:21:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-19 05:21:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-19 05:21:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure transmit14 [2020-08-19 05:21:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-19 05:21:05,233 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-19 05:21:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-19 05:21:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-19 05:21:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-19 05:21:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-19 05:21:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-19 05:21:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-19 05:21:05,234 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-19 05:21:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-19 05:21:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-19 05:21:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-19 05:21:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 05:21:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 05:21:05,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 05:21:06,408 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 05:21:06,408 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-08-19 05:21:06,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:21:06 BoogieIcfgContainer [2020-08-19 05:21:06,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 05:21:06,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 05:21:06,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 05:21:06,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 05:21:06,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 05:21:04" (1/3) ... [2020-08-19 05:21:06,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60964cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:21:06, skipping insertion in model container [2020-08-19 05:21:06,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 05:21:05" (2/3) ... [2020-08-19 05:21:06,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60964cac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 05:21:06, skipping insertion in model container [2020-08-19 05:21:06,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 05:21:06" (3/3) ... [2020-08-19 05:21:06,426 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2020-08-19 05:21:06,437 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 05:21:06,445 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 05:21:06,460 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 05:21:06,488 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 05:21:06,488 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 05:21:06,488 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 05:21:06,488 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 05:21:06,489 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 05:21:06,489 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 05:21:06,489 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 05:21:06,489 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 05:21:06,522 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states. [2020-08-19 05:21:06,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-19 05:21:06,544 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:21:06,545 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:21:06,546 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:21:06,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:21:06,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1383974208, now seen corresponding path program 1 times [2020-08-19 05:21:06,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:21:06,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1587688626] [2020-08-19 05:21:06,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:21:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,395 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-19 05:21:07,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:21:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:21:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:21:07,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:21:07,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 05:21:07,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 05:21:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:21:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:21:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 05:21:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 05:21:07,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:21:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 05:21:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 05:21:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 05:21:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 05:21:07,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 05:21:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 05:21:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 05:21:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 05:21:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 05:21:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-19 05:21:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-19 05:21:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:07,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-19 05:21:07,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:08,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:21:08,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1587688626] [2020-08-19 05:21:08,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:21:08,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 05:21:08,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784251437] [2020-08-19 05:21:08,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 05:21:08,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:21:08,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 05:21:08,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-19 05:21:08,066 INFO L87 Difference]: Start difference. First operand 526 states. Second operand 12 states. [2020-08-19 05:21:08,416 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-19 05:21:08,568 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 05:21:08,930 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-19 05:21:09,154 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-19 05:21:11,550 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-19 05:21:11,883 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-08-19 05:21:12,226 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-19 05:21:12,395 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-19 05:21:12,738 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-19 05:21:12,910 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-19 05:21:21,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:21:21,391 INFO L93 Difference]: Finished difference Result 1409 states and 2346 transitions. [2020-08-19 05:21:21,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-19 05:21:21,393 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-08-19 05:21:21,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:21:21,437 INFO L225 Difference]: With dead ends: 1409 [2020-08-19 05:21:21,437 INFO L226 Difference]: Without dead ends: 887 [2020-08-19 05:21:21,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-08-19 05:21:21,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-08-19 05:21:21,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 522. [2020-08-19 05:21:21,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2020-08-19 05:21:21,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 765 transitions. [2020-08-19 05:21:21,664 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 765 transitions. Word has length 254 [2020-08-19 05:21:21,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:21:21,665 INFO L479 AbstractCegarLoop]: Abstraction has 522 states and 765 transitions. [2020-08-19 05:21:21,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 05:21:21,665 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 765 transitions. [2020-08-19 05:21:21,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-19 05:21:21,672 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:21:21,673 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:21:21,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 05:21:21,673 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:21:21,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:21:21,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1062988672, now seen corresponding path program 1 times [2020-08-19 05:21:21,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:21:21,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804469461] [2020-08-19 05:21:21,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:21:21,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,044 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-19 05:21:22,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:21:22,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:21:22,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:21:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:21:22,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 05:21:22,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 05:21:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:21:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:21:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 05:21:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 05:21:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:21:22,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 05:21:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 05:21:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 05:21:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 05:21:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 05:21:22,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 05:21:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 05:21:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 05:21:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 05:21:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-19 05:21:22,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-19 05:21:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-19 05:21:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:22,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:21:22,493 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804469461] [2020-08-19 05:21:22,493 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:21:22,493 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-19 05:21:22,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714178867] [2020-08-19 05:21:22,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-19 05:21:22,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:21:22,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-19 05:21:22,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-19 05:21:22,497 INFO L87 Difference]: Start difference. First operand 522 states and 765 transitions. Second operand 12 states. [2020-08-19 05:21:22,868 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-19 05:21:23,013 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 05:21:23,329 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-19 05:21:23,525 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-19 05:21:25,934 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-19 05:21:26,237 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-08-19 05:21:26,404 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-19 05:21:26,756 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-19 05:21:26,929 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-19 05:21:27,242 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-19 05:21:35,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:21:35,514 INFO L93 Difference]: Finished difference Result 1386 states and 2171 transitions. [2020-08-19 05:21:35,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-19 05:21:35,515 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-08-19 05:21:35,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:21:35,523 INFO L225 Difference]: With dead ends: 1386 [2020-08-19 05:21:35,523 INFO L226 Difference]: Without dead ends: 888 [2020-08-19 05:21:35,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2020-08-19 05:21:35,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2020-08-19 05:21:35,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 527. [2020-08-19 05:21:35,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-08-19 05:21:35,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 769 transitions. [2020-08-19 05:21:35,630 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 769 transitions. Word has length 254 [2020-08-19 05:21:35,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:21:35,631 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 769 transitions. [2020-08-19 05:21:35,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-19 05:21:35,631 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 769 transitions. [2020-08-19 05:21:35,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-19 05:21:35,636 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:21:35,636 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:21:35,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 05:21:35,637 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:21:35,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:21:35,637 INFO L82 PathProgramCache]: Analyzing trace with hash 458447040, now seen corresponding path program 1 times [2020-08-19 05:21:35,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:21:35,638 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1399978456] [2020-08-19 05:21:35,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:21:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,031 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-19 05:21:36,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:21:36,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:21:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:21:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:21:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 05:21:36,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 05:21:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:21:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:21:36,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 05:21:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 05:21:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:21:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 05:21:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 05:21:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 05:21:36,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 05:21:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 05:21:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 05:21:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 05:21:36,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 05:21:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 05:21:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-19 05:21:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-19 05:21:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-19 05:21:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:36,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:21:36,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1399978456] [2020-08-19 05:21:36,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:21:36,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 05:21:36,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650904280] [2020-08-19 05:21:36,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 05:21:36,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:21:36,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 05:21:36,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-19 05:21:36,530 INFO L87 Difference]: Start difference. First operand 527 states and 769 transitions. Second operand 9 states. [2020-08-19 05:21:36,933 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-19 05:21:37,148 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-19 05:21:37,366 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-19 05:21:45,083 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-19 05:21:45,273 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-19 05:21:51,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:21:51,096 INFO L93 Difference]: Finished difference Result 2134 states and 3311 transitions. [2020-08-19 05:21:51,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 05:21:51,100 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 254 [2020-08-19 05:21:51,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:21:51,111 INFO L225 Difference]: With dead ends: 2134 [2020-08-19 05:21:51,112 INFO L226 Difference]: Without dead ends: 1639 [2020-08-19 05:21:51,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-19 05:21:51,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2020-08-19 05:21:51,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1040. [2020-08-19 05:21:51,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-08-19 05:21:51,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1532 transitions. [2020-08-19 05:21:51,314 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1532 transitions. Word has length 254 [2020-08-19 05:21:51,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:21:51,314 INFO L479 AbstractCegarLoop]: Abstraction has 1040 states and 1532 transitions. [2020-08-19 05:21:51,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 05:21:51,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1532 transitions. [2020-08-19 05:21:51,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-19 05:21:51,319 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:21:51,319 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:21:51,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 05:21:51,320 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:21:51,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:21:51,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1062661057, now seen corresponding path program 1 times [2020-08-19 05:21:51,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:21:51,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [782808326] [2020-08-19 05:21:51,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:21:51,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,634 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-19 05:21:51,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:21:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:21:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:21:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:21:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 05:21:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 05:21:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:21:51,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:21:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 05:21:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 05:21:51,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:21:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 05:21:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 05:21:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 05:21:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 05:21:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 05:21:51,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 05:21:51,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 05:21:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 05:21:51,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 05:21:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-19 05:21:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-19 05:21:51,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:51,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-19 05:21:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:21:52,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:21:52,036 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [782808326] [2020-08-19 05:21:52,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:21:52,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 05:21:52,037 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301901736] [2020-08-19 05:21:52,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 05:21:52,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:21:52,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 05:21:52,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-19 05:21:52,039 INFO L87 Difference]: Start difference. First operand 1040 states and 1532 transitions. Second operand 10 states. [2020-08-19 05:21:52,391 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-19 05:21:52,529 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-19 05:21:52,709 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-19 05:22:00,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 05:22:00,826 INFO L93 Difference]: Finished difference Result 2636 states and 4012 transitions. [2020-08-19 05:22:00,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 05:22:00,829 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2020-08-19 05:22:00,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 05:22:00,839 INFO L225 Difference]: With dead ends: 2636 [2020-08-19 05:22:00,839 INFO L226 Difference]: Without dead ends: 1628 [2020-08-19 05:22:00,843 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-19 05:22:00,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2020-08-19 05:22:01,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1040. [2020-08-19 05:22:01,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-08-19 05:22:01,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1525 transitions. [2020-08-19 05:22:01,010 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1525 transitions. Word has length 254 [2020-08-19 05:22:01,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 05:22:01,011 INFO L479 AbstractCegarLoop]: Abstraction has 1040 states and 1525 transitions. [2020-08-19 05:22:01,011 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 05:22:01,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1525 transitions. [2020-08-19 05:22:01,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-19 05:22:01,014 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 05:22:01,014 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 05:22:01,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 05:22:01,015 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 05:22:01,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 05:22:01,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1143415041, now seen corresponding path program 1 times [2020-08-19 05:22:01,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 05:22:01,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728382665] [2020-08-19 05:22:01,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 05:22:01,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,348 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-19 05:22:01,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 05:22:01,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 05:22:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 05:22:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 05:22:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-19 05:22:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-19 05:22:01,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 05:22:01,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 05:22:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 05:22:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 05:22:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 05:22:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 05:22:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 05:22:01,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 05:22:01,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 05:22:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 05:22:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 05:22:01,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 05:22:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 05:22:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 05:22:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-19 05:22:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-19 05:22:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-19 05:22:01,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 05:22:01,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 05:22:01,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728382665] [2020-08-19 05:22:01,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 05:22:01,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 05:22:01,742 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608304045] [2020-08-19 05:22:01,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 05:22:01,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 05:22:01,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 05:22:01,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-19 05:22:01,745 INFO L87 Difference]: Start difference. First operand 1040 states and 1525 transitions. Second operand 10 states. [2020-08-19 05:22:02,036 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-19 05:22:02,180 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-19 05:22:02,371 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 135