/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=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-22 04:00:25,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 04:00:25,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 04:00:25,195 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 04:00:25,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 04:00:25,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 04:00:25,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 04:00:25,211 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 04:00:25,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 04:00:25,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 04:00:25,218 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 04:00:25,219 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 04:00:25,219 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 04:00:25,222 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 04:00:25,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 04:00:25,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 04:00:25,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 04:00:25,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 04:00:25,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 04:00:25,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 04:00:25,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 04:00:25,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 04:00:25,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 04:00:25,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 04:00:25,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 04:00:25,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 04:00:25,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 04:00:25,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 04:00:25,260 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 04:00:25,261 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 04:00:25,261 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 04:00:25,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 04:00:25,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 04:00:25,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 04:00:25,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 04:00:25,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 04:00:25,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 04:00:25,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 04:00:25,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 04:00:25,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 04:00:25,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 04:00:25,274 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 [2020-08-22 04:00:25,315 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 04:00:25,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 04:00:25,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 04:00:25,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 04:00:25,319 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 04:00:25,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 04:00:25,320 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 04:00:25,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 04:00:25,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 04:00:25,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 04:00:25,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 04:00:25,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 04:00:25,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 04:00:25,322 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 04:00:25,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 04:00:25,323 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 04:00:25,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 04:00:25,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 04:00:25,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 04:00:25,324 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 04:00:25,324 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 04:00:25,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 04:00:25,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 04:00:25,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 04:00:25,325 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 04:00:25,325 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 04:00:25,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 04:00:25,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 04:00:25,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 04:00:25,326 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=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true; [2020-08-22 04:00:25,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 04:00:25,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 04:00:25,642 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 04:00:25,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 04:00:25,643 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 04:00:25,644 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-08-22 04:00:25,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/576e84bba/3fc309ce23df4bb1b7852904e0e925ae/FLAGbc86a40cd [2020-08-22 04:00:26,292 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 04:00:26,293 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-08-22 04:00:26,312 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/576e84bba/3fc309ce23df4bb1b7852904e0e925ae/FLAGbc86a40cd [2020-08-22 04:00:26,498 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/576e84bba/3fc309ce23df4bb1b7852904e0e925ae [2020-08-22 04:00:26,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 04:00:26,512 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 04:00:26,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 04:00:26,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 04:00:26,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 04:00:26,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:00:26" (1/1) ... [2020-08-22 04:00:26,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fe964b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:26, skipping insertion in model container [2020-08-22 04:00:26,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:00:26" (1/1) ... [2020-08-22 04:00:26,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 04:00:26,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 04:00:26,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 04:00:26,992 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 04:00:27,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 04:00:27,257 INFO L208 MainTranslator]: Completed translation [2020-08-22 04:00:27,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:27 WrapperNode [2020-08-22 04:00:27,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 04:00:27,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 04:00:27,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 04:00:27,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 04:00:27,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:27" (1/1) ... [2020-08-22 04:00:27,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:27" (1/1) ... [2020-08-22 04:00:27,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:27" (1/1) ... [2020-08-22 04:00:27,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:27" (1/1) ... [2020-08-22 04:00:27,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:27" (1/1) ... [2020-08-22 04:00:27,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:27" (1/1) ... [2020-08-22 04:00:27,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:27" (1/1) ... [2020-08-22 04:00:27,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 04:00:27,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 04:00:27,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 04:00:27,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 04:00:27,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:27" (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 [2020-08-22 04:00:27,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 04:00:27,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 04:00:27,447 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-22 04:00:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-22 04:00:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-22 04:00:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-22 04:00:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-22 04:00:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-22 04:00:27,448 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-22 04:00:27,449 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-22 04:00:27,449 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-22 04:00:27,450 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-22 04:00:27,450 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-22 04:00:27,450 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-22 04:00:27,450 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-22 04:00:27,451 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-22 04:00:27,451 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-22 04:00:27,451 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit14 [2020-08-22 04:00:27,452 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-22 04:00:27,452 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-22 04:00:27,452 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-22 04:00:27,452 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-22 04:00:27,452 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-22 04:00:27,452 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-22 04:00:27,453 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-22 04:00:27,454 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-22 04:00:27,454 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-22 04:00:27,454 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-22 04:00:27,454 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-22 04:00:27,454 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-22 04:00:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-22 04:00:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-22 04:00:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered [2020-08-22 04:00:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-22 04:00:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-22 04:00:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-22 04:00:27,455 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-22 04:00:27,456 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-22 04:00:27,456 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-22 04:00:27,456 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-22 04:00:27,456 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-22 04:00:27,456 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-22 04:00:27,456 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-22 04:00:27,458 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-22 04:00:27,459 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-22 04:00:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-22 04:00:27,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 04:00:27,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 04:00:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 04:00:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-22 04:00:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-22 04:00:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-22 04:00:27,461 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-22 04:00:27,462 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-22 04:00:27,462 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-22 04:00:27,462 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-22 04:00:27,462 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-22 04:00:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-22 04:00:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-22 04:00:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-22 04:00:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-22 04:00:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-22 04:00:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-22 04:00:27,463 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-22 04:00:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit14_triggered [2020-08-22 04:00:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-22 04:00:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-22 04:00:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-22 04:00:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-22 04:00:27,464 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-22 04:00:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-22 04:00:27,465 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-22 04:00:27,466 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-22 04:00:27,466 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-22 04:00:27,467 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-22 04:00:27,468 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-22 04:00:27,468 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-22 04:00:27,468 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-22 04:00:27,468 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-22 04:00:27,468 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-22 04:00:27,468 INFO L130 BoogieDeclarations]: Found specification of procedure transmit14 [2020-08-22 04:00:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-22 04:00:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-22 04:00:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-22 04:00:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-22 04:00:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-22 04:00:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-22 04:00:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-22 04:00:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-22 04:00:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-22 04:00:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-22 04:00:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-22 04:00:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-22 04:00:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 04:00:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 04:00:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 04:00:28,692 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 04:00:28,692 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-08-22 04:00:28,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:00:28 BoogieIcfgContainer [2020-08-22 04:00:28,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 04:00:28,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 04:00:28,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 04:00:28,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 04:00:28,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:00:26" (1/3) ... [2020-08-22 04:00:28,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19358c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:00:28, skipping insertion in model container [2020-08-22 04:00:28,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:00:27" (2/3) ... [2020-08-22 04:00:28,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19358c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:00:28, skipping insertion in model container [2020-08-22 04:00:28,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:00:28" (3/3) ... [2020-08-22 04:00:28,710 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2020-08-22 04:00:28,721 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 04:00:28,729 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 04:00:28,744 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 04:00:28,771 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 04:00:28,771 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 04:00:28,772 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 04:00:28,772 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 04:00:28,772 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 04:00:28,772 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 04:00:28,772 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 04:00:28,773 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 04:00:28,802 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states. [2020-08-22 04:00:28,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-22 04:00:28,825 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:00:28,827 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] [2020-08-22 04:00:28,827 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:00:28,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:00:28,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1383974208, now seen corresponding path program 1 times [2020-08-22 04:00:28,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:00:28,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195441223] [2020-08-22 04:00:28,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:00:29,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,664 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 04:00:29,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:00:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:00:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:00:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 04:00:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 04:00:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:29,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-22 04:00:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:00:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:00:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 04:00:30,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 04:00:30,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:00:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 04:00:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:00:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:00:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 04:00:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:00:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 04:00:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 04:00:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 04:00:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 04:00:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 04:00:30,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-22 04:00:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-22 04:00:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:30,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:00:30,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195441223] [2020-08-22 04:00:30,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:00:30,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 04:00:30,333 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107144081] [2020-08-22 04:00:30,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 04:00:30,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:00:30,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 04:00:30,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-22 04:00:30,356 INFO L87 Difference]: Start difference. First operand 526 states. Second operand 12 states. [2020-08-22 04:00:30,726 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-22 04:00:30,889 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-22 04:00:31,247 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 04:00:31,479 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 04:00:33,809 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-22 04:00:34,146 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-08-22 04:00:34,465 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-22 04:00:34,636 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-22 04:00:34,980 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-22 04:00:35,160 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-22 04:00:43,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:00:43,929 INFO L93 Difference]: Finished difference Result 1409 states and 2346 transitions. [2020-08-22 04:00:43,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-22 04:00:43,932 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-08-22 04:00:43,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:00:43,972 INFO L225 Difference]: With dead ends: 1409 [2020-08-22 04:00:43,972 INFO L226 Difference]: Without dead ends: 887 [2020-08-22 04:00:43,986 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 [2020-08-22 04:00:44,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-08-22 04:00:44,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 522. [2020-08-22 04:00:44,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2020-08-22 04:00:44,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 765 transitions. [2020-08-22 04:00:44,227 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 765 transitions. Word has length 254 [2020-08-22 04:00:44,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:00:44,228 INFO L479 AbstractCegarLoop]: Abstraction has 522 states and 765 transitions. [2020-08-22 04:00:44,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 04:00:44,228 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 765 transitions. [2020-08-22 04:00:44,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-22 04:00:44,234 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:00:44,234 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] [2020-08-22 04:00:44,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 04:00:44,235 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:00:44,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:00:44,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1062988672, now seen corresponding path program 1 times [2020-08-22 04:00:44,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:00:44,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1780825235] [2020-08-22 04:00:44,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:00:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,601 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 04:00:44,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:00:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:00:44,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:00:44,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 04:00:44,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 04:00:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-22 04:00:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:00:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:00:44,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 04:00:44,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 04:00:44,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:00:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 04:00:44,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:00:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:00:44,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 04:00:44,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:00:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 04:00:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 04:00:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 04:00:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 04:00:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 04:00:44,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-22 04:00:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:44,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-22 04:00:44,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:45,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:00:45,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1780825235] [2020-08-22 04:00:45,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:00:45,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 04:00:45,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570380855] [2020-08-22 04:00:45,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 04:00:45,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:00:45,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 04:00:45,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-22 04:00:45,094 INFO L87 Difference]: Start difference. First operand 522 states and 765 transitions. Second operand 12 states. [2020-08-22 04:00:45,468 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-22 04:00:45,613 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-22 04:00:45,932 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 04:00:46,133 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 04:00:48,585 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-22 04:00:48,909 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-08-22 04:00:49,083 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-22 04:00:49,405 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-22 04:00:49,601 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-22 04:00:49,903 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-22 04:00:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:00:58,005 INFO L93 Difference]: Finished difference Result 1386 states and 2171 transitions. [2020-08-22 04:00:58,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 04:00:58,006 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-08-22 04:00:58,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:00:58,019 INFO L225 Difference]: With dead ends: 1386 [2020-08-22 04:00:58,019 INFO L226 Difference]: Without dead ends: 888 [2020-08-22 04:00:58,023 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 [2020-08-22 04:00:58,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2020-08-22 04:00:58,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 527. [2020-08-22 04:00:58,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-08-22 04:00:58,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 769 transitions. [2020-08-22 04:00:58,147 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 769 transitions. Word has length 254 [2020-08-22 04:00:58,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:00:58,148 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 769 transitions. [2020-08-22 04:00:58,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 04:00:58,148 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 769 transitions. [2020-08-22 04:00:58,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-22 04:00:58,152 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:00:58,153 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] [2020-08-22 04:00:58,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 04:00:58,153 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:00:58,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:00:58,154 INFO L82 PathProgramCache]: Analyzing trace with hash 458447040, now seen corresponding path program 1 times [2020-08-22 04:00:58,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:00:58,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431698511] [2020-08-22 04:00:58,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:00:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,520 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 04:00:58,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:00:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:00:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:00:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 04:00:58,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 04:00:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-22 04:00:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:00:58,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:00:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 04:00:58,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 04:00:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:00:58,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 04:00:58,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:00:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:00:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 04:00:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:00:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 04:00:58,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 04:00:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 04:00:58,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 04:00:58,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 04:00:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-22 04:00:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:58,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-22 04:00:58,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:00:59,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:00:59,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431698511] [2020-08-22 04:00:59,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:00:59,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 04:00:59,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069263228] [2020-08-22 04:00:59,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 04:00:59,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:00:59,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 04:00:59,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 04:00:59,075 INFO L87 Difference]: Start difference. First operand 527 states and 769 transitions. Second operand 9 states. [2020-08-22 04:00:59,449 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 04:00:59,589 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 04:00:59,803 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 04:01:07,274 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-22 04:01:07,488 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-22 04:01:13,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:01:13,126 INFO L93 Difference]: Finished difference Result 2134 states and 3311 transitions. [2020-08-22 04:01:13,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 04:01:13,127 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 254 [2020-08-22 04:01:13,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:01:13,139 INFO L225 Difference]: With dead ends: 2134 [2020-08-22 04:01:13,139 INFO L226 Difference]: Without dead ends: 1639 [2020-08-22 04:01:13,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-22 04:01:13,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2020-08-22 04:01:13,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1040. [2020-08-22 04:01:13,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-08-22 04:01:13,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1532 transitions. [2020-08-22 04:01:13,362 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1532 transitions. Word has length 254 [2020-08-22 04:01:13,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:01:13,365 INFO L479 AbstractCegarLoop]: Abstraction has 1040 states and 1532 transitions. [2020-08-22 04:01:13,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 04:01:13,368 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1532 transitions. [2020-08-22 04:01:13,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-22 04:01:13,373 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:01:13,373 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] [2020-08-22 04:01:13,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 04:01:13,374 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:01:13,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:01:13,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1062661057, now seen corresponding path program 1 times [2020-08-22 04:01:13,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:01:13,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315543421] [2020-08-22 04:01:13,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:01:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:13,730 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 04:01:13,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:01:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:13,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:01:13,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:13,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:01:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:13,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 04:01:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:13,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 04:01:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:13,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-22 04:01:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:01:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:01:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 04:01:14,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 04:01:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:01:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 04:01:14,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:01:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:01:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 04:01:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:01:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 04:01:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 04:01:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 04:01:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 04:01:14,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 04:01:14,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-22 04:01:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-22 04:01:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:01:14,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315543421] [2020-08-22 04:01:14,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:01:14,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 04:01:14,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151529512] [2020-08-22 04:01:14,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 04:01:14,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:01:14,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 04:01:14,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 04:01:14,139 INFO L87 Difference]: Start difference. First operand 1040 states and 1532 transitions. Second operand 10 states. [2020-08-22 04:01:14,450 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 04:01:14,600 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 04:01:14,814 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 04:01:22,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 04:01:22,983 INFO L93 Difference]: Finished difference Result 2636 states and 4012 transitions. [2020-08-22 04:01:22,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 04:01:22,984 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2020-08-22 04:01:22,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 04:01:22,997 INFO L225 Difference]: With dead ends: 2636 [2020-08-22 04:01:22,997 INFO L226 Difference]: Without dead ends: 1628 [2020-08-22 04:01:23,002 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-22 04:01:23,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2020-08-22 04:01:23,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1040. [2020-08-22 04:01:23,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-08-22 04:01:23,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1525 transitions. [2020-08-22 04:01:23,207 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1525 transitions. Word has length 254 [2020-08-22 04:01:23,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 04:01:23,207 INFO L479 AbstractCegarLoop]: Abstraction has 1040 states and 1525 transitions. [2020-08-22 04:01:23,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 04:01:23,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1525 transitions. [2020-08-22 04:01:23,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-22 04:01:23,211 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 04:01:23,212 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] [2020-08-22 04:01:23,212 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 04:01:23,212 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 04:01:23,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 04:01:23,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1143415041, now seen corresponding path program 1 times [2020-08-22 04:01:23,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 04:01:23,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [309750000] [2020-08-22 04:01:23,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 04:01:23,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,547 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-22 04:01:23,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 04:01:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-22 04:01:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-22 04:01:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 04:01:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-22 04:01:23,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-22 04:01:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-22 04:01:23,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 04:01:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-22 04:01:23,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 04:01:23,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-22 04:01:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 04:01:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-22 04:01:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 04:01:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-22 04:01:23,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-22 04:01:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-22 04:01:23,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 04:01:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-22 04:01:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 04:01:23,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 04:01:23,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-22 04:01:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-22 04:01:23,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 04:01:23,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 04:01:23,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [309750000] [2020-08-22 04:01:23,887 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 04:01:23,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 04:01:23,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562635022] [2020-08-22 04:01:23,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 04:01:23,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 04:01:23,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 04:01:23,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 04:01:23,889 INFO L87 Difference]: Start difference. First operand 1040 states and 1525 transitions. Second operand 10 states. [2020-08-22 04:01:24,198 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-22 04:01:24,341 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-22 04:01:24,545 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 135