/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=0.5 -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 06:58:10,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 06:58:10,770 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 06:58:10,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 06:58:10,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 06:58:10,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 06:58:10,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 06:58:10,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 06:58:10,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 06:58:10,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 06:58:10,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 06:58:10,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 06:58:10,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 06:58:10,841 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 06:58:10,843 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 06:58:10,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 06:58:10,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 06:58:10,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 06:58:10,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 06:58:10,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 06:58:10,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 06:58:10,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 06:58:10,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 06:58:10,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 06:58:10,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-19 06:58:10,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-19 06:58:10,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-19 06:58:10,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-19 06:58:10,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-19 06:58:10,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-19 06:58:10,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-19 06:58:10,885 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-19 06:58:10,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-19 06:58:10,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-19 06:58:10,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-19 06:58:10,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-19 06:58:10,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-19 06:58:10,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-19 06:58:10,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 06:58:10,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 06:58:10,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 06:58:10,896 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 06:58:10,934 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 06:58:10,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 06:58:10,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 06:58:10,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 06:58:10,937 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 06:58:10,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 06:58:10,938 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 06:58:10,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 06:58:10,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 06:58:10,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 06:58:10,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 06:58:10,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 06:58:10,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 06:58:10,940 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 06:58:10,940 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 06:58:10,940 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 06:58:10,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 06:58:10,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 06:58:10,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 06:58:10,941 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 06:58:10,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 06:58:10,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 06:58:10,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 06:58:10,942 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 06:58:10,942 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 06:58:10,942 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 06:58:10,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 06:58:10,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 06:58:10,943 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 06:58:10,943 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=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; [2020-08-19 06:58:11,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 06:58:11,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 06:58:11,268 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 06:58:11,270 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 06:58:11,270 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 06:58:11,271 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-19 06:58:11,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/12bb8f8a9/795f7ef63764435d9b5161aea848fb85/FLAG82949b2bc [2020-08-19 06:58:11,881 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 06:58:11,882 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-19 06:58:11,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/12bb8f8a9/795f7ef63764435d9b5161aea848fb85/FLAG82949b2bc [2020-08-19 06:58:12,202 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/12bb8f8a9/795f7ef63764435d9b5161aea848fb85 [2020-08-19 06:58:12,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 06:58:12,211 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 06:58:12,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 06:58:12,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 06:58:12,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 06:58:12,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:58:12" (1/1) ... [2020-08-19 06:58:12,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d819d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:58:12, skipping insertion in model container [2020-08-19 06:58:12,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:58:12" (1/1) ... [2020-08-19 06:58:12,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 06:58:12,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 06:58:12,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:58:12,780 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 06:58:12,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:58:12,917 INFO L208 MainTranslator]: Completed translation [2020-08-19 06:58:12,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:58:12 WrapperNode [2020-08-19 06:58:12,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 06:58:12,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 06:58:12,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 06:58:12,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 06:58:12,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:58:12" (1/1) ... [2020-08-19 06:58:12,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:58:12" (1/1) ... [2020-08-19 06:58:12,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:58:12" (1/1) ... [2020-08-19 06:58:12,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:58:12" (1/1) ... [2020-08-19 06:58:12,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:58:12" (1/1) ... [2020-08-19 06:58:12,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:58:12" (1/1) ... [2020-08-19 06:58:13,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:58:12" (1/1) ... [2020-08-19 06:58:13,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 06:58:13,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 06:58:13,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 06:58:13,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 06:58:13,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:58:12" (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 06:58:13,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 06:58:13,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 06:58:13,079 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-19 06:58:13,079 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-19 06:58:13,080 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-19 06:58:13,080 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-19 06:58:13,080 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-19 06:58:13,080 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-19 06:58:13,080 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-19 06:58:13,080 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-19 06:58:13,081 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-19 06:58:13,081 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-19 06:58:13,081 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-19 06:58:13,081 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-19 06:58:13,081 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-19 06:58:13,081 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-19 06:58:13,081 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-19 06:58:13,082 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-19 06:58:13,082 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-19 06:58:13,082 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-19 06:58:13,082 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-19 06:58:13,082 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-19 06:58:13,082 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-19 06:58:13,083 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-19 06:58:13,083 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-19 06:58:13,083 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-19 06:58:13,083 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-19 06:58:13,083 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-19 06:58:13,083 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-19 06:58:13,083 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-19 06:58:13,084 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-19 06:58:13,084 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-19 06:58:13,084 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-19 06:58:13,084 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-19 06:58:13,084 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-19 06:58:13,084 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-19 06:58:13,085 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-19 06:58:13,085 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-19 06:58:13,085 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-19 06:58:13,085 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-19 06:58:13,085 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-19 06:58:13,085 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-19 06:58:13,085 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-19 06:58:13,086 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-19 06:58:13,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 06:58:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 06:58:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-19 06:58:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-19 06:58:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-19 06:58:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-19 06:58:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-19 06:58:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-19 06:58:13,086 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-19 06:58:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-19 06:58:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-19 06:58:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-19 06:58:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-19 06:58:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-19 06:58:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-19 06:58:13,087 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-19 06:58:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-19 06:58:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-19 06:58:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-19 06:58:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-19 06:58:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-19 06:58:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-19 06:58:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-19 06:58:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-19 06:58:13,088 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-19 06:58:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-19 06:58:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-19 06:58:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-19 06:58:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-19 06:58:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-19 06:58:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-19 06:58:13,089 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-19 06:58:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-19 06:58:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-19 06:58:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-19 06:58:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-19 06:58:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-19 06:58:13,090 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-19 06:58:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-19 06:58:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-19 06:58:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-19 06:58:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-19 06:58:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-19 06:58:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-19 06:58:13,091 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-19 06:58:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 06:58:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 06:58:13,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 06:58:14,206 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 06:58:14,206 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-08-19 06:58:14,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:58:14 BoogieIcfgContainer [2020-08-19 06:58:14,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 06:58:14,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 06:58:14,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 06:58:14,219 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 06:58:14,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 06:58:12" (1/3) ... [2020-08-19 06:58:14,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268d7d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:58:14, skipping insertion in model container [2020-08-19 06:58:14,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:58:12" (2/3) ... [2020-08-19 06:58:14,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@268d7d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:58:14, skipping insertion in model container [2020-08-19 06:58:14,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:58:14" (3/3) ... [2020-08-19 06:58:14,222 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-08-19 06:58:14,234 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 06:58:14,242 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 06:58:14,258 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 06:58:14,290 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 06:58:14,290 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 06:58:14,291 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 06:58:14,291 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 06:58:14,291 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 06:58:14,291 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 06:58:14,291 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 06:58:14,292 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 06:58:14,325 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-08-19 06:58:14,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-19 06:58:14,344 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:58:14,346 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 06:58:14,346 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:58:14,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:58:14,355 INFO L82 PathProgramCache]: Analyzing trace with hash 754746292, now seen corresponding path program 1 times [2020-08-19 06:58:14,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:58:14,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731552760] [2020-08-19 06:58:14,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:58:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,270 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-19 06:58:15,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:58:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:58:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:58:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:58:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:58:15,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 06:58:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:58:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 06:58:15,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 06:58:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:58:15,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:58:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 06:58:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 06:58:15,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 06:58:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 06:58:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 06:58:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 06:58:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 06:58:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 06:58:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 06:58:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-19 06:58:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 06:58:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:15,879 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 06:58:15,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731552760] [2020-08-19 06:58:15,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:58:15,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 06:58:15,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174959939] [2020-08-19 06:58:15,889 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 06:58:15,889 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:58:15,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 06:58:15,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-19 06:58:15,913 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2020-08-19 06:58:16,373 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-19 06:58:16,519 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-19 06:58:16,803 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-19 06:58:17,017 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 06:58:24,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:58:24,975 INFO L93 Difference]: Finished difference Result 1306 states and 2150 transitions. [2020-08-19 06:58:24,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-19 06:58:24,977 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-19 06:58:24,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:58:25,011 INFO L225 Difference]: With dead ends: 1306 [2020-08-19 06:58:25,011 INFO L226 Difference]: Without dead ends: 810 [2020-08-19 06:58:25,023 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-08-19 06:58:25,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-19 06:58:25,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-19 06:58:25,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-19 06:58:25,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2020-08-19 06:58:25,231 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2020-08-19 06:58:25,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:58:25,232 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2020-08-19 06:58:25,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 06:58:25,232 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2020-08-19 06:58:25,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-19 06:58:25,238 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:58:25,238 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 06:58:25,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 06:58:25,239 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:58:25,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:58:25,239 INFO L82 PathProgramCache]: Analyzing trace with hash -332213258, now seen corresponding path program 1 times [2020-08-19 06:58:25,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:58:25,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879517436] [2020-08-19 06:58:25,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:58:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,586 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-19 06:58:25,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:58:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:58:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:58:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:58:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:58:25,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 06:58:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:58:25,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 06:58:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 06:58:25,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:58:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:58:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 06:58:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 06:58:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 06:58:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 06:58:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 06:58:25,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 06:58:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 06:58:25,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 06:58:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 06:58:25,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-19 06:58:25,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 06:58:25,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:25,958 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 06:58:25,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879517436] [2020-08-19 06:58:25,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:58:25,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-19 06:58:25,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386207980] [2020-08-19 06:58:25,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-19 06:58:25,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:58:25,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-19 06:58:25,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-19 06:58:25,962 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2020-08-19 06:58:26,234 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-19 06:58:26,651 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-19 06:58:26,822 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 06:58:33,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:58:33,040 INFO L93 Difference]: Finished difference Result 1277 states and 1950 transitions. [2020-08-19 06:58:33,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-19 06:58:33,040 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-19 06:58:33,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:58:33,048 INFO L225 Difference]: With dead ends: 1277 [2020-08-19 06:58:33,049 INFO L226 Difference]: Without dead ends: 810 [2020-08-19 06:58:33,051 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 06:58:33,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-19 06:58:33,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-19 06:58:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-19 06:58:33,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2020-08-19 06:58:33,184 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2020-08-19 06:58:33,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:58:33,184 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2020-08-19 06:58:33,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-19 06:58:33,185 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2020-08-19 06:58:33,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-19 06:58:33,191 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:58:33,192 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 06:58:33,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 06:58:33,192 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:58:33,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:58:33,193 INFO L82 PathProgramCache]: Analyzing trace with hash -275347912, now seen corresponding path program 1 times [2020-08-19 06:58:33,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:58:33,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [815551928] [2020-08-19 06:58:33,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:58:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,576 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-19 06:58:33,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:58:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:58:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:58:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:58:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:58:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 06:58:33,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:58:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 06:58:33,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 06:58:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:58:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:58:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 06:58:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 06:58:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 06:58:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 06:58:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 06:58:33,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 06:58:33,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 06:58:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 06:58:33,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 06:58:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-19 06:58:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:33,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 06:58:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:34,025 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 06:58:34,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [815551928] [2020-08-19 06:58:34,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:58:34,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-19 06:58:34,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589978649] [2020-08-19 06:58:34,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 06:58:34,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:58:34,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 06:58:34,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-19 06:58:34,029 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2020-08-19 06:58:34,295 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-19 06:58:34,430 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 06:58:34,617 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 06:58:41,585 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-19 06:58:41,771 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-19 06:58:47,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:58:47,173 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2020-08-19 06:58:47,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-19 06:58:47,174 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2020-08-19 06:58:47,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:58:47,184 INFO L225 Difference]: With dead ends: 1991 [2020-08-19 06:58:47,184 INFO L226 Difference]: Without dead ends: 1532 [2020-08-19 06:58:47,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-19 06:58:47,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-08-19 06:58:47,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2020-08-19 06:58:47,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-19 06:58:47,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2020-08-19 06:58:47,369 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2020-08-19 06:58:47,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:58:47,370 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2020-08-19 06:58:47,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 06:58:47,370 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2020-08-19 06:58:47,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-19 06:58:47,373 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:58:47,373 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] [2020-08-19 06:58:47,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 06:58:47,374 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:58:47,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:58:47,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1349355716, now seen corresponding path program 1 times [2020-08-19 06:58:47,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:58:47,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099143028] [2020-08-19 06:58:47,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:58:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:47,753 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-19 06:58:47,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:58:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:47,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:58:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:47,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:58:47,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:47,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:58:47,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:47,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:58:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 06:58:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:58:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 06:58:48,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 06:58:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:58:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:58:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 06:58:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 06:58:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 06:58:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 06:58:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 06:58:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 06:58:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 06:58:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 06:58:48,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 06:58:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-19 06:58:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 06:58:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:48,292 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 06:58:48,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099143028] [2020-08-19 06:58:48,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:58:48,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 06:58:48,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903477834] [2020-08-19 06:58:48,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 06:58:48,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:58:48,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 06:58:48,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-19 06:58:48,297 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 10 states. [2020-08-19 06:58:48,744 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-19 06:58:48,949 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 06:58:49,225 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 06:58:57,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:58:57,291 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2020-08-19 06:58:57,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 06:58:57,292 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-19 06:58:57,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:58:57,305 INFO L225 Difference]: With dead ends: 2455 [2020-08-19 06:58:57,306 INFO L226 Difference]: Without dead ends: 1521 [2020-08-19 06:58:57,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-19 06:58:57,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-08-19 06:58:57,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2020-08-19 06:58:57,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-19 06:58:57,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2020-08-19 06:58:57,505 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2020-08-19 06:58:57,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:58:57,506 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2020-08-19 06:58:57,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 06:58:57,506 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2020-08-19 06:58:57,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-19 06:58:57,510 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:58:57,510 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 06:58:57,510 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 06:58:57,510 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:58:57,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:58:57,511 INFO L82 PathProgramCache]: Analyzing trace with hash -275622472, now seen corresponding path program 1 times [2020-08-19 06:58:57,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:58:57,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946834356] [2020-08-19 06:58:57,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:58:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:57,842 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-19 06:58:57,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:58:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:57,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:58:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:57,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:58:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:57,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:58:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:58:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 06:58:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:58:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 06:58:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 06:58:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:58:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:58:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 06:58:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 06:58:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 06:58:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 06:58:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 06:58:58,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 06:58:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 06:58:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 06:58:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 06:58:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-19 06:58:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 06:58:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:58:58,311 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 06:58:58,312 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946834356] [2020-08-19 06:58:58,312 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:58:58,313 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 06:58:58,313 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602317135] [2020-08-19 06:58:58,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 06:58:58,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:58:58,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 06:58:58,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-19 06:58:58,315 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2020-08-19 06:58:58,583 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-19 06:58:58,711 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 06:58:58,898 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 06:59:04,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:59:04,788 INFO L93 Difference]: Finished difference Result 2451 states and 3722 transitions. [2020-08-19 06:59:04,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 06:59:04,789 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-19 06:59:04,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:59:04,798 INFO L225 Difference]: With dead ends: 2451 [2020-08-19 06:59:04,798 INFO L226 Difference]: Without dead ends: 1517 [2020-08-19 06:59:04,802 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 06:59:04,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-08-19 06:59:04,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 965. [2020-08-19 06:59:04,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-19 06:59:04,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2020-08-19 06:59:04,967 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2020-08-19 06:59:04,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:59:04,967 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2020-08-19 06:59:04,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-19 06:59:04,968 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2020-08-19 06:59:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-19 06:59:04,971 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:59:04,971 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 06:59:04,971 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-19 06:59:04,972 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:59:04,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:59:04,972 INFO L82 PathProgramCache]: Analyzing trace with hash -518080580, now seen corresponding path program 1 times [2020-08-19 06:59:04,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:59:04,973 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [926510849] [2020-08-19 06:59:04,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:59:04,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,278 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-19 06:59:05,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:59:05,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-19 06:59:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-19 06:59:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-19 06:59:05,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-19 06:59:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-19 06:59:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-19 06:59:05,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-19 06:59:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-19 06:59:05,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-19 06:59:05,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-19 06:59:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-19 06:59:05,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-19 06:59:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-19 06:59:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-19 06:59:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-19 06:59:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-19 06:59:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-19 06:59:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-19 06:59:05,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-19 06:59:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-19 06:59:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-19 06:59:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:59:05,669 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 06:59:05,669 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [926510849] [2020-08-19 06:59:05,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:59:05,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-19 06:59:05,672 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38133354] [2020-08-19 06:59:05,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-19 06:59:05,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:59:05,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-19 06:59:05,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-19 06:59:05,673 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states. [2020-08-19 06:59:05,957 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-19 06:59:06,086 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-19 06:59:06,273 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 126