/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=BIGGEST -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 [2020-08-18 13:05:57,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 13:05:57,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 13:05:57,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 13:05:57,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 13:05:57,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 13:05:57,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 13:05:57,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 13:05:57,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 13:05:57,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 13:05:57,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 13:05:57,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 13:05:57,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 13:05:57,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 13:05:57,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 13:05:57,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 13:05:57,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 13:05:57,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 13:05:57,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 13:05:57,958 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 13:05:57,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 13:05:57,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 13:05:57,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 13:05:57,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 13:05:57,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 13:05:57,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 13:05:57,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 13:05:57,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 13:05:57,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 13:05:57,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 13:05:57,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 13:05:57,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 13:05:57,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 13:05:57,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 13:05:57,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 13:05:57,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 13:05:57,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 13:05:57,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 13:05:57,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 13:05:57,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 13:05:57,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 13:05:57,987 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 [2020-08-18 13:05:58,026 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 13:05:58,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 13:05:58,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 13:05:58,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 13:05:58,029 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 13:05:58,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 13:05:58,029 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 13:05:58,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 13:05:58,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 13:05:58,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 13:05:58,031 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 13:05:58,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 13:05:58,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 13:05:58,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 13:05:58,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 13:05:58,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 13:05:58,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 13:05:58,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 13:05:58,032 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 13:05:58,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 13:05:58,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 13:05:58,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 13:05:58,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 13:05:58,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 13:05:58,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 13:05:58,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 13:05:58,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 13:05:58,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 13:05:58,034 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 13:05:58,034 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=BIGGEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=BIGGEST; [2020-08-18 13:05:58,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 13:05:58,366 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 13:05:58,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 13:05:58,371 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 13:05:58,371 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 13:05:58,372 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-18 13:05:58,424 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de850c8aa/f07db519e205432fb5e7a5801123b0e3/FLAG147813b4a [2020-08-18 13:05:58,889 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 13:05:58,889 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.15.cil.c [2020-08-18 13:05:58,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de850c8aa/f07db519e205432fb5e7a5801123b0e3/FLAG147813b4a [2020-08-18 13:05:59,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/de850c8aa/f07db519e205432fb5e7a5801123b0e3 [2020-08-18 13:05:59,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 13:05:59,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 13:05:59,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 13:05:59,204 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 13:05:59,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 13:05:59,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 01:05:59" (1/1) ... [2020-08-18 13:05:59,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71e0f281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:05:59, skipping insertion in model container [2020-08-18 13:05:59,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 01:05:59" (1/1) ... [2020-08-18 13:05:59,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 13:05:59,277 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 13:05:59,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 13:05:59,719 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 13:05:59,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 13:05:59,911 INFO L208 MainTranslator]: Completed translation [2020-08-18 13:05:59,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:05:59 WrapperNode [2020-08-18 13:05:59,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 13:05:59,913 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 13:05:59,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 13:05:59,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 13:05:59,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:05:59" (1/1) ... [2020-08-18 13:05:59,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:05:59" (1/1) ... [2020-08-18 13:05:59,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:05:59" (1/1) ... [2020-08-18 13:05:59,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:05:59" (1/1) ... [2020-08-18 13:05:59,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:05:59" (1/1) ... [2020-08-18 13:05:59,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:05:59" (1/1) ... [2020-08-18 13:05:59,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:05:59" (1/1) ... [2020-08-18 13:06:00,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 13:06:00,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 13:06:00,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 13:06:00,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 13:06:00,008 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:05:59" (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 [2020-08-18 13:06:00,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 13:06:00,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 13:06:00,065 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-18 13:06:00,067 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-18 13:06:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-18 13:06:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-18 13:06:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-18 13:06:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-18 13:06:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-18 13:06:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-18 13:06:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-18 13:06:00,068 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-18 13:06:00,069 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-18 13:06:00,069 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-18 13:06:00,069 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-18 13:06:00,069 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-18 13:06:00,069 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-18 13:06:00,069 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-18 13:06:00,070 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-18 13:06:00,070 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-18 13:06:00,070 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-18 13:06:00,070 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-18 13:06:00,070 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-18 13:06:00,070 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-18 13:06:00,070 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-18 13:06:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-18 13:06:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-18 13:06:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-18 13:06:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-18 13:06:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-18 13:06:00,071 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-18 13:06:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-18 13:06:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-18 13:06:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-18 13:06:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-18 13:06:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-18 13:06:00,072 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-18 13:06:00,073 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-18 13:06:00,073 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-18 13:06:00,073 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-18 13:06:00,073 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-18 13:06:00,073 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-18 13:06:00,073 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-18 13:06:00,074 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-18 13:06:00,074 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 13:06:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 13:06:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 13:06:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-18 13:06:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-18 13:06:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-18 13:06:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-18 13:06:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-18 13:06:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-18 13:06:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-18 13:06:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-18 13:06:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-18 13:06:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-18 13:06:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-18 13:06:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-18 13:06:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-18 13:06:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-18 13:06:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-18 13:06:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-18 13:06:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-18 13:06:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-18 13:06:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-18 13:06:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-18 13:06:00,077 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-18 13:06:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-18 13:06:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-18 13:06:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-18 13:06:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-18 13:06:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-18 13:06:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-18 13:06:00,078 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-18 13:06:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-18 13:06:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-18 13:06:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-18 13:06:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-18 13:06:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-18 13:06:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-18 13:06:00,079 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-18 13:06:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-18 13:06:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-18 13:06:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-18 13:06:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-18 13:06:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-18 13:06:00,080 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-18 13:06:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-18 13:06:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 13:06:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 13:06:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 13:06:01,092 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 13:06:01,092 INFO L295 CfgBuilder]: Removed 17 assume(true) statements. [2020-08-18 13:06:01,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 01:06:01 BoogieIcfgContainer [2020-08-18 13:06:01,100 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 13:06:01,101 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 13:06:01,101 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 13:06:01,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 13:06:01,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 01:05:59" (1/3) ... [2020-08-18 13:06:01,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669b6ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 01:06:01, skipping insertion in model container [2020-08-18 13:06:01,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 01:05:59" (2/3) ... [2020-08-18 13:06:01,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@669b6ade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 01:06:01, skipping insertion in model container [2020-08-18 13:06:01,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 01:06:01" (3/3) ... [2020-08-18 13:06:01,108 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2020-08-18 13:06:01,118 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 13:06:01,126 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 13:06:01,139 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 13:06:01,165 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 13:06:01,166 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 13:06:01,166 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 13:06:01,166 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 13:06:01,166 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 13:06:01,166 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 13:06:01,167 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 13:06:01,167 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 13:06:01,202 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states. [2020-08-18 13:06:01,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 13:06:01,221 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:06:01,222 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] [2020-08-18 13:06:01,223 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:06:01,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:06:01,228 INFO L82 PathProgramCache]: Analyzing trace with hash 754746292, now seen corresponding path program 1 times [2020-08-18 13:06:01,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:06:01,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614095909] [2020-08-18 13:06:01,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:06:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,018 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 13:06:02,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:06:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:06:02,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:06:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 13:06:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 13:06:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 13:06:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 13:06:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 13:06:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 13:06:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 13:06:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 13:06:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 13:06:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 13:06:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 13:06:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 13:06:02,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 13:06:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 13:06:02,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 13:06:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 13:06:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 13:06:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 13:06:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 13:06:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:02,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:06:02,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1614095909] [2020-08-18 13:06:02,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:06:02,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 13:06:02,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768713973] [2020-08-18 13:06:02,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 13:06:02,513 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:06:02,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 13:06:02,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-18 13:06:02,529 INFO L87 Difference]: Start difference. First operand 499 states. Second operand 8 states. [2020-08-18 13:06:02,872 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-18 13:06:03,003 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-18 13:06:03,310 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 13:06:10,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:06:10,579 INFO L93 Difference]: Finished difference Result 1306 states and 2150 transitions. [2020-08-18 13:06:10,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 13:06:10,581 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-18 13:06:10,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:06:10,615 INFO L225 Difference]: With dead ends: 1306 [2020-08-18 13:06:10,615 INFO L226 Difference]: Without dead ends: 810 [2020-08-18 13:06:10,630 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-08-18 13:06:10,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-18 13:06:10,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-18 13:06:10,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-18 13:06:10,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 718 transitions. [2020-08-18 13:06:10,813 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 718 transitions. Word has length 240 [2020-08-18 13:06:10,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:06:10,814 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 718 transitions. [2020-08-18 13:06:10,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 13:06:10,814 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 718 transitions. [2020-08-18 13:06:10,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 13:06:10,821 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:06:10,821 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] [2020-08-18 13:06:10,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 13:06:10,822 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:06:10,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:06:10,822 INFO L82 PathProgramCache]: Analyzing trace with hash -332213258, now seen corresponding path program 1 times [2020-08-18 13:06:10,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:06:10,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717209640] [2020-08-18 13:06:10,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:06:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,211 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 13:06:11,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:06:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:06:11,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:06:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 13:06:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 13:06:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 13:06:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 13:06:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 13:06:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 13:06:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 13:06:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 13:06:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 13:06:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 13:06:11,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 13:06:11,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 13:06:11,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 13:06:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 13:06:11,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 13:06:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 13:06:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 13:06:11,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 13:06:11,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 13:06:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:11,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:06:11,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717209640] [2020-08-18 13:06:11,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:06:11,562 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 13:06:11,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902241259] [2020-08-18 13:06:11,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 13:06:11,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:06:11,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 13:06:11,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-18 13:06:11,565 INFO L87 Difference]: Start difference. First operand 490 states and 718 transitions. Second operand 8 states. [2020-08-18 13:06:11,829 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-18 13:06:11,967 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-18 13:06:12,253 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 13:06:18,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:06:18,108 INFO L93 Difference]: Finished difference Result 1277 states and 1950 transitions. [2020-08-18 13:06:18,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 13:06:18,117 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 240 [2020-08-18 13:06:18,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:06:18,124 INFO L225 Difference]: With dead ends: 1277 [2020-08-18 13:06:18,124 INFO L226 Difference]: Without dead ends: 810 [2020-08-18 13:06:18,127 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 [2020-08-18 13:06:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-08-18 13:06:18,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 490. [2020-08-18 13:06:18,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 490 states. [2020-08-18 13:06:18,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 717 transitions. [2020-08-18 13:06:18,240 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 717 transitions. Word has length 240 [2020-08-18 13:06:18,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:06:18,241 INFO L479 AbstractCegarLoop]: Abstraction has 490 states and 717 transitions. [2020-08-18 13:06:18,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 13:06:18,241 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 717 transitions. [2020-08-18 13:06:18,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 13:06:18,245 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:06:18,245 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] [2020-08-18 13:06:18,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 13:06:18,246 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:06:18,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:06:18,246 INFO L82 PathProgramCache]: Analyzing trace with hash -275347912, now seen corresponding path program 1 times [2020-08-18 13:06:18,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:06:18,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663967222] [2020-08-18 13:06:18,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:06:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,625 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 13:06:18,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:06:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:06:18,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:06:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 13:06:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 13:06:18,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 13:06:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 13:06:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 13:06:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 13:06:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 13:06:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 13:06:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 13:06:18,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 13:06:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 13:06:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 13:06:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 13:06:18,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 13:06:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 13:06:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 13:06:18,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 13:06:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 13:06:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:18,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 13:06:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:19,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:06:19,029 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663967222] [2020-08-18 13:06:19,029 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:06:19,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 13:06:19,029 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623607708] [2020-08-18 13:06:19,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 13:06:19,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:06:19,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 13:06:19,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 13:06:19,031 INFO L87 Difference]: Start difference. First operand 490 states and 717 transitions. Second operand 9 states. [2020-08-18 13:06:19,287 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 13:06:19,411 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 13:06:19,607 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 13:06:26,093 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-08-18 13:06:26,264 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-08-18 13:06:31,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:06:31,122 INFO L93 Difference]: Finished difference Result 1991 states and 3097 transitions. [2020-08-18 13:06:31,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 13:06:31,122 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2020-08-18 13:06:31,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:06:31,133 INFO L225 Difference]: With dead ends: 1991 [2020-08-18 13:06:31,133 INFO L226 Difference]: Without dead ends: 1532 [2020-08-18 13:06:31,136 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-18 13:06:31,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2020-08-18 13:06:31,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 965. [2020-08-18 13:06:31,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-18 13:06:31,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1426 transitions. [2020-08-18 13:06:31,307 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1426 transitions. Word has length 240 [2020-08-18 13:06:31,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:06:31,307 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1426 transitions. [2020-08-18 13:06:31,307 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 13:06:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1426 transitions. [2020-08-18 13:06:31,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 13:06:31,311 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:06:31,311 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] [2020-08-18 13:06:31,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 13:06:31,311 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:06:31,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:06:31,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1349355716, now seen corresponding path program 1 times [2020-08-18 13:06:31,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:06:31,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515950609] [2020-08-18 13:06:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:06:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:31,672 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 13:06:31,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:06:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:31,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:06:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:31,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:06:31,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:31,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 13:06:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:31,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 13:06:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:31,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 13:06:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 13:06:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 13:06:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 13:06:32,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 13:06:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 13:06:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 13:06:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 13:06:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 13:06:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 13:06:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 13:06:32,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 13:06:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 13:06:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 13:06:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 13:06:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 13:06:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 13:06:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:32,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:06:32,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1515950609] [2020-08-18 13:06:32,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:06:32,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 13:06:32,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555122186] [2020-08-18 13:06:32,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 13:06:32,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:06:32,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 13:06:32,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 13:06:32,243 INFO L87 Difference]: Start difference. First operand 965 states and 1426 transitions. Second operand 10 states. [2020-08-18 13:06:32,534 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 13:06:32,808 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 13:06:40,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:06:40,058 INFO L93 Difference]: Finished difference Result 2455 states and 3744 transitions. [2020-08-18 13:06:40,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 13:06:40,058 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-18 13:06:40,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:06:40,067 INFO L225 Difference]: With dead ends: 2455 [2020-08-18 13:06:40,068 INFO L226 Difference]: Without dead ends: 1521 [2020-08-18 13:06:40,071 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 [2020-08-18 13:06:40,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2020-08-18 13:06:40,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 965. [2020-08-18 13:06:40,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-18 13:06:40,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1419 transitions. [2020-08-18 13:06:40,233 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1419 transitions. Word has length 240 [2020-08-18 13:06:40,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:06:40,234 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1419 transitions. [2020-08-18 13:06:40,234 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 13:06:40,234 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1419 transitions. [2020-08-18 13:06:40,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 13:06:40,238 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:06:40,238 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] [2020-08-18 13:06:40,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 13:06:40,239 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:06:40,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:06:40,239 INFO L82 PathProgramCache]: Analyzing trace with hash -275622472, now seen corresponding path program 1 times [2020-08-18 13:06:40,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:06:40,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2029543528] [2020-08-18 13:06:40,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:06:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,530 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 13:06:40,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:06:40,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:06:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:06:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 13:06:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 13:06:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 13:06:40,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 13:06:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 13:06:40,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 13:06:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 13:06:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 13:06:40,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 13:06:40,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 13:06:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 13:06:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 13:06:40,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 13:06:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 13:06:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 13:06:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 13:06:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 13:06:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 13:06:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 13:06:40,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:40,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:06:40,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2029543528] [2020-08-18 13:06:40,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:06:40,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 13:06:40,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459448634] [2020-08-18 13:06:40,912 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 13:06:40,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:06:40,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 13:06:40,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 13:06:40,912 INFO L87 Difference]: Start difference. First operand 965 states and 1419 transitions. Second operand 10 states. [2020-08-18 13:06:41,163 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 13:06:41,286 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 13:06:41,470 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 13:06:47,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:06:47,035 INFO L93 Difference]: Finished difference Result 2451 states and 3722 transitions. [2020-08-18 13:06:47,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 13:06:47,035 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-18 13:06:47,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:06:47,044 INFO L225 Difference]: With dead ends: 2451 [2020-08-18 13:06:47,044 INFO L226 Difference]: Without dead ends: 1517 [2020-08-18 13:06:47,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-18 13:06:47,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2020-08-18 13:06:47,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 965. [2020-08-18 13:06:47,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-18 13:06:47,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1412 transitions. [2020-08-18 13:06:47,209 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1412 transitions. Word has length 240 [2020-08-18 13:06:47,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:06:47,209 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1412 transitions. [2020-08-18 13:06:47,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 13:06:47,209 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1412 transitions. [2020-08-18 13:06:47,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 13:06:47,213 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:06:47,214 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] [2020-08-18 13:06:47,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 13:06:47,214 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:06:47,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:06:47,215 INFO L82 PathProgramCache]: Analyzing trace with hash -518080580, now seen corresponding path program 1 times [2020-08-18 13:06:47,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:06:47,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524165989] [2020-08-18 13:06:47,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:06:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,523 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 13:06:47,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:06:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:06:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:06:47,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 13:06:47,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 13:06:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 13:06:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 13:06:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 13:06:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 13:06:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 13:06:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 13:06:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 13:06:47,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 13:06:47,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 13:06:47,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 13:06:47,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 13:06:47,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 13:06:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 13:06:47,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 13:06:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 13:06:47,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 13:06:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 13:06:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:47,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:06:47,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524165989] [2020-08-18 13:06:47,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:06:47,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 13:06:47,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674434214] [2020-08-18 13:06:47,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 13:06:47,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:06:47,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 13:06:47,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 13:06:47,917 INFO L87 Difference]: Start difference. First operand 965 states and 1412 transitions. Second operand 10 states. [2020-08-18 13:06:48,211 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 13:06:48,335 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 13:06:48,520 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 13:06:55,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 13:06:55,070 INFO L93 Difference]: Finished difference Result 2447 states and 3700 transitions. [2020-08-18 13:06:55,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 13:06:55,070 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 240 [2020-08-18 13:06:55,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 13:06:55,078 INFO L225 Difference]: With dead ends: 2447 [2020-08-18 13:06:55,078 INFO L226 Difference]: Without dead ends: 1513 [2020-08-18 13:06:55,082 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 [2020-08-18 13:06:55,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2020-08-18 13:06:55,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 965. [2020-08-18 13:06:55,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-08-18 13:06:55,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1405 transitions. [2020-08-18 13:06:55,241 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1405 transitions. Word has length 240 [2020-08-18 13:06:55,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 13:06:55,241 INFO L479 AbstractCegarLoop]: Abstraction has 965 states and 1405 transitions. [2020-08-18 13:06:55,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 13:06:55,242 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1405 transitions. [2020-08-18 13:06:55,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-08-18 13:06:55,245 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 13:06:55,245 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] [2020-08-18 13:06:55,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 13:06:55,246 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 13:06:55,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 13:06:55,246 INFO L82 PathProgramCache]: Analyzing trace with hash 859571512, now seen corresponding path program 1 times [2020-08-18 13:06:55,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 13:06:55,247 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031865677] [2020-08-18 13:06:55,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 13:06:55,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,540 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-08-18 13:06:55,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 13:06:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 13:06:55,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 13:06:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 13:06:55,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 13:06:55,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-08-18 13:06:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 13:06:55,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 13:06:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 13:06:55,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 13:06:55,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 13:06:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 13:06:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 13:06:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 13:06:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 13:06:55,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 13:06:55,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 13:06:55,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 13:06:55,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 13:06:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 13:06:55,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-08-18 13:06:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-18 13:06:55,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 13:06:55,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 13:06:55,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031865677] [2020-08-18 13:06:55,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 13:06:55,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 13:06:55,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348099000] [2020-08-18 13:06:55,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 13:06:55,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 13:06:55,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 13:06:55,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 13:06:55,945 INFO L87 Difference]: Start difference. First operand 965 states and 1405 transitions. Second operand 10 states. [2020-08-18 13:06:56,201 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-08-18 13:06:56,323 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2020-08-18 13:06:56,503 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 126