/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=0.1 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 03:44:00,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 03:44:00,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 03:44:00,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 03:44:00,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 03:44:00,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 03:44:00,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 03:44:00,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 03:44:00,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 03:44:00,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 03:44:00,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 03:44:00,118 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 03:44:00,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 03:44:00,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 03:44:00,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 03:44:00,121 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 03:44:00,122 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 03:44:00,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 03:44:00,124 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 03:44:00,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 03:44:00,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 03:44:00,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 03:44:00,130 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 03:44:00,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 03:44:00,133 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 03:44:00,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 03:44:00,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 03:44:00,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 03:44:00,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 03:44:00,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 03:44:00,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 03:44:00,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 03:44:00,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 03:44:00,138 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 03:44:00,139 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 03:44:00,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 03:44:00,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 03:44:00,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 03:44:00,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 03:44:00,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 03:44:00,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 03:44:00,142 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 03:44:00,176 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 03:44:00,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 03:44:00,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 03:44:00,180 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 03:44:00,180 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 03:44:00,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 03:44:00,180 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 03:44:00,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 03:44:00,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 03:44:00,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 03:44:00,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 03:44:00,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 03:44:00,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 03:44:00,184 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 03:44:00,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 03:44:00,184 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 03:44:00,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 03:44:00,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 03:44:00,185 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 03:44:00,185 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 03:44:00,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 03:44:00,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 03:44:00,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 03:44:00,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 03:44:00,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 03:44:00,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 03:44:00,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 03:44:00,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 03:44:00,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 03:44:00,189 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=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1; [2020-08-19 03:44:00,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 03:44:00,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 03:44:00,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 03:44:00,528 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 03:44:00,530 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 03:44:00,531 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-19 03:44:00,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d681b913/2dcf74c02c944fb0ad05c3e9a00e4d8c/FLAG94c0d3306 [2020-08-19 03:44:01,137 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 03:44:01,138 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-19 03:44:01,157 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d681b913/2dcf74c02c944fb0ad05c3e9a00e4d8c/FLAG94c0d3306 [2020-08-19 03:44:01,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d681b913/2dcf74c02c944fb0ad05c3e9a00e4d8c [2020-08-19 03:44:01,428 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 03:44:01,430 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 03:44:01,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 03:44:01,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 03:44:01,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 03:44:01,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:44:01" (1/1) ... [2020-08-19 03:44:01,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee4d01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:44:01, skipping insertion in model container [2020-08-19 03:44:01,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 03:44:01" (1/1) ... [2020-08-19 03:44:01,449 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 03:44:01,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 03:44:01,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:44:01,876 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 03:44:02,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 03:44:02,108 INFO L208 MainTranslator]: Completed translation [2020-08-19 03:44:02,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:44:02 WrapperNode [2020-08-19 03:44:02,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 03:44:02,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 03:44:02,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 03:44:02,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 03:44:02,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:44:02" (1/1) ... [2020-08-19 03:44:02,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:44:02" (1/1) ... [2020-08-19 03:44:02,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:44:02" (1/1) ... [2020-08-19 03:44:02,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:44:02" (1/1) ... [2020-08-19 03:44:02,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:44:02" (1/1) ... [2020-08-19 03:44:02,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:44:02" (1/1) ... [2020-08-19 03:44:02,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:44:02" (1/1) ... [2020-08-19 03:44:02,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 03:44:02,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 03:44:02,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 03:44:02,199 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 03:44:02,200 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:44:02" (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 03:44:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 03:44:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 03:44:02,269 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-19 03:44:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-19 03:44:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-19 03:44:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-19 03:44:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-19 03:44:02,270 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-19 03:44:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-19 03:44:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-19 03:44:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-19 03:44:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-19 03:44:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-19 03:44:02,271 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-19 03:44:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-19 03:44:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-19 03:44:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-19 03:44:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-19 03:44:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-19 03:44:02,272 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-19 03:44:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-19 03:44:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-19 03:44:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-19 03:44:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-19 03:44:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-19 03:44:02,273 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-19 03:44:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-19 03:44:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-19 03:44:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-19 03:44:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-19 03:44:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-19 03:44:02,274 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-19 03:44:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-19 03:44:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-19 03:44:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-19 03:44:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-19 03:44:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-19 03:44:02,275 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-19 03:44:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-19 03:44:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-19 03:44:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-19 03:44:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-19 03:44:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-19 03:44:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-19 03:44:02,276 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 03:44:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 03:44:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 03:44:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-19 03:44:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-19 03:44:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-19 03:44:02,277 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-19 03:44:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-19 03:44:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-19 03:44:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-19 03:44:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-19 03:44:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-19 03:44:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-19 03:44:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-19 03:44:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-19 03:44:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-19 03:44:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-19 03:44:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-19 03:44:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-19 03:44:02,279 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-19 03:44:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-19 03:44:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-19 03:44:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-19 03:44:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-19 03:44:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-19 03:44:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-19 03:44:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-19 03:44:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-19 03:44:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-19 03:44:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-19 03:44:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-19 03:44:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-19 03:44:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-19 03:44:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-19 03:44:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-19 03:44:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-19 03:44:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-19 03:44:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-19 03:44:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-19 03:44:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-19 03:44:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-19 03:44:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-19 03:44:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-19 03:44:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-19 03:44:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-19 03:44:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 03:44:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 03:44:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 03:44:03,561 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 03:44:03,561 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-08-19 03:44:03,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:44:03 BoogieIcfgContainer [2020-08-19 03:44:03,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 03:44:03,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 03:44:03,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 03:44:03,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 03:44:03,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 03:44:01" (1/3) ... [2020-08-19 03:44:03,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548a026f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:44:03, skipping insertion in model container [2020-08-19 03:44:03,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 03:44:02" (2/3) ... [2020-08-19 03:44:03,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548a026f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 03:44:03, skipping insertion in model container [2020-08-19 03:44:03,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 03:44:03" (3/3) ... [2020-08-19 03:44:03,577 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-08-19 03:44:03,588 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 03:44:03,597 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 03:44:03,611 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 03:44:03,638 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 03:44:03,638 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 03:44:03,639 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 03:44:03,639 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 03:44:03,639 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 03:44:03,639 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 03:44:03,639 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 03:44:03,640 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 03:44:03,671 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-08-19 03:44:03,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-19 03:44:03,689 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:44:03,690 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] [2020-08-19 03:44:03,690 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:44:03,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:44:03,697 INFO L82 PathProgramCache]: Analyzing trace with hash 754746292, now seen corresponding path program 1 times [2020-08-19 03:44:03,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:44:03,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [274857644] [2020-08-19 03:44:03,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:44:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,492 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-19 03:44:04,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:44:04,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:44:04,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:44:04,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 03:44:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:44:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 03:44:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:44:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:44:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 03:44:04,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 03:44:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:44:04,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 03:44:04,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 03:44:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 03:44:04,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 03:44:04,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 03:44:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 03:44:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 03:44:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 03:44:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 03:44:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-19 03:44:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:04,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 03:44:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:05,055 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 03:44:05,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [274857644] [2020-08-19 03:44:05,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:44:05,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 03:44:05,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352625025] [2020-08-19 03:44:05,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 03:44:05,065 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:44:05,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 03:44:05,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-19 03:44:05,080 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2020-08-19 03:44:05,437 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-19 03:44:05,577 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-19 03:44:05,870 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-19 03:44:06,069 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 03:44:13,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:44:13,641 INFO L93 Difference]: Finished difference Result 1306 states and 2150 transitions. [2020-08-19 03:44:13,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 03:44:13,643 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-19 03:44:13,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:44:13,673 INFO L225 Difference]: With dead ends: 1306 [2020-08-19 03:44:13,673 INFO L226 Difference]: Without dead ends: 810 [2020-08-19 03:44:13,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-08-19 03:44:13,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-19 03:44:13,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-19 03:44:13,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-19 03:44:13,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2020-08-19 03:44:13,878 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2020-08-19 03:44:13,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:44:13,879 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2020-08-19 03:44:13,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 03:44:13,879 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2020-08-19 03:44:13,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-19 03:44:13,885 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:44:13,885 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] [2020-08-19 03:44:13,885 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 03:44:13,886 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:44:13,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:44:13,886 INFO L82 PathProgramCache]: Analyzing trace with hash -332213258, now seen corresponding path program 1 times [2020-08-19 03:44:13,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:44:13,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698402580] [2020-08-19 03:44:13,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:44:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,222 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-19 03:44:14,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:44:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:44:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:44:14,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 03:44:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:44:14,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 03:44:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:44:14,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:44:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 03:44:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 03:44:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:44:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 03:44:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 03:44:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 03:44:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 03:44:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 03:44:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 03:44:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 03:44:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 03:44:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 03:44:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-19 03:44:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 03:44:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:14,627 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 03:44:14,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698402580] [2020-08-19 03:44:14,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:44:14,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 03:44:14,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162423696] [2020-08-19 03:44:14,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 03:44:14,644 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:44:14,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 03:44:14,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-19 03:44:14,648 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2020-08-19 03:44:14,962 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-19 03:44:15,087 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-19 03:44:15,385 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-19 03:44:15,544 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 03:44:21,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:44:21,671 INFO L93 Difference]: Finished difference Result 1277 states and 1950 transitions. [2020-08-19 03:44:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 03:44:21,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-19 03:44:21,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:44:21,680 INFO L225 Difference]: With dead ends: 1277 [2020-08-19 03:44:21,681 INFO L226 Difference]: Without dead ends: 810 [2020-08-19 03:44:21,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-08-19 03:44:21,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-19 03:44:21,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-19 03:44:21,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-19 03:44:21,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2020-08-19 03:44:21,803 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2020-08-19 03:44:21,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:44:21,803 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2020-08-19 03:44:21,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 03:44:21,804 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2020-08-19 03:44:21,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-19 03:44:21,809 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:44:21,809 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] [2020-08-19 03:44:21,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 03:44:21,810 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:44:21,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:44:21,811 INFO L82 PathProgramCache]: Analyzing trace with hash -275347912, now seen corresponding path program 1 times [2020-08-19 03:44:21,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:44:21,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244753710] [2020-08-19 03:44:21,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:44:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,180 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-19 03:44:22,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:44:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:44:22,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:44:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 03:44:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:44:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 03:44:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:44:22,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:44:22,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 03:44:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 03:44:22,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:44:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 03:44:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 03:44:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 03:44:22,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 03:44:22,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 03:44:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 03:44:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 03:44:22,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 03:44:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 03:44:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-19 03:44:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 03:44:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:22,548 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 03:44:22,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244753710] [2020-08-19 03:44:22,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:44:22,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 03:44:22,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039355365] [2020-08-19 03:44:22,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 03:44:22,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:44:22,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 03:44:22,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-19 03:44:22,551 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2020-08-19 03:44:22,942 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-19 03:44:23,126 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 03:44:23,395 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 03:44:30,656 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-19 03:44:30,834 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-19 03:44:36,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:44:36,274 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2020-08-19 03:44:36,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 03:44:36,274 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2020-08-19 03:44:36,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:44:36,287 INFO L225 Difference]: With dead ends: 1991 [2020-08-19 03:44:36,287 INFO L226 Difference]: Without dead ends: 1532 [2020-08-19 03:44:36,290 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-19 03:44:36,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-08-19 03:44:36,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2020-08-19 03:44:36,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-19 03:44:36,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2020-08-19 03:44:36,503 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2020-08-19 03:44:36,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:44:36,506 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2020-08-19 03:44:36,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 03:44:36,506 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2020-08-19 03:44:36,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-19 03:44:36,514 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:44:36,514 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] [2020-08-19 03:44:36,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 03:44:36,515 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:44:36,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:44:36,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1349355716, now seen corresponding path program 1 times [2020-08-19 03:44:36,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:44:36,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666183040] [2020-08-19 03:44:36,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:44:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:36,871 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-19 03:44:36,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:44:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:36,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:44:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:36,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:44:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:36,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 03:44:36,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:44:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 03:44:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:44:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:44:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 03:44:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 03:44:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:44:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 03:44:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 03:44:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 03:44:37,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 03:44:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 03:44:37,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 03:44:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 03:44:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 03:44:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 03:44:37,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-19 03:44:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 03:44:37,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:37,345 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 03:44:37,346 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666183040] [2020-08-19 03:44:37,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:44:37,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 03:44:37,347 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990642602] [2020-08-19 03:44:37,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 03:44:37,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:44:37,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 03:44:37,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-19 03:44:37,348 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 10 states. [2020-08-19 03:44:37,629 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-19 03:44:37,754 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 03:44:37,937 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 03:44:46,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:44:46,244 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2020-08-19 03:44:46,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 03:44:46,245 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-19 03:44:46,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:44:46,260 INFO L225 Difference]: With dead ends: 2455 [2020-08-19 03:44:46,261 INFO L226 Difference]: Without dead ends: 1521 [2020-08-19 03:44:46,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 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 03:44:46,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-08-19 03:44:46,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2020-08-19 03:44:46,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-19 03:44:46,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2020-08-19 03:44:46,472 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2020-08-19 03:44:46,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:44:46,473 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2020-08-19 03:44:46,473 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 03:44:46,473 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2020-08-19 03:44:46,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-19 03:44:46,477 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:44:46,478 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] [2020-08-19 03:44:46,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 03:44:46,478 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:44:46,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:44:46,478 INFO L82 PathProgramCache]: Analyzing trace with hash -275622472, now seen corresponding path program 1 times [2020-08-19 03:44:46,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:44:46,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978553313] [2020-08-19 03:44:46,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:44:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:46,774 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-19 03:44:46,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:44:46,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:46,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:44:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:46,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:44:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:46,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 03:44:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:46,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:44:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:46,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 03:44:47,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:44:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:44:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 03:44:47,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 03:44:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:44:47,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 03:44:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 03:44:47,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 03:44:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 03:44:47,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 03:44:47,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 03:44:47,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 03:44:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 03:44:47,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 03:44:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-19 03:44:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 03:44:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:47,160 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 03:44:47,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978553313] [2020-08-19 03:44:47,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:44:47,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 03:44:47,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060430517] [2020-08-19 03:44:47,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 03:44:47,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:44:47,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 03:44:47,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-19 03:44:47,163 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2020-08-19 03:44:47,437 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-19 03:44:47,567 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 03:44:47,747 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 03:44:53,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 03:44:53,728 INFO L93 Difference]: Finished difference Result 2451 states and 3722 transitions. [2020-08-19 03:44:53,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 03:44:53,729 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-19 03:44:53,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 03:44:53,739 INFO L225 Difference]: With dead ends: 2451 [2020-08-19 03:44:53,739 INFO L226 Difference]: Without dead ends: 1517 [2020-08-19 03:44:53,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 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 03:44:53,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-08-19 03:44:53,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 965. [2020-08-19 03:44:53,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-19 03:44:53,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2020-08-19 03:44:53,912 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2020-08-19 03:44:53,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 03:44:53,913 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2020-08-19 03:44:53,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 03:44:53,913 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2020-08-19 03:44:53,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-19 03:44:53,917 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 03:44:53,917 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] [2020-08-19 03:44:53,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 03:44:53,918 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 03:44:53,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 03:44:53,918 INFO L82 PathProgramCache]: Analyzing trace with hash -518080580, now seen corresponding path program 1 times [2020-08-19 03:44:53,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 03:44:53,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [89475257] [2020-08-19 03:44:53,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 03:44:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,214 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-19 03:44:54,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 03:44:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 03:44:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 03:44:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 03:44:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 03:44:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 03:44:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 03:44:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 03:44:54,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 03:44:54,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 03:44:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 03:44:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 03:44:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 03:44:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 03:44:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 03:44:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 03:44:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 03:44:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 03:44:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 03:44:54,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 03:44:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-19 03:44:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 03:44:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 03:44:54,589 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 03:44:54,589 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [89475257] [2020-08-19 03:44:54,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 03:44:54,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 03:44:54,590 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104959205] [2020-08-19 03:44:54,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 03:44:54,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 03:44:54,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 03:44:54,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-19 03:44:54,592 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states. [2020-08-19 03:44:54,867 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-19 03:44:55,002 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 03:44:55,188 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 126