/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 23:41:10,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 23:41:10,931 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 23:41:10,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 23:41:10,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 23:41:10,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 23:41:10,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 23:41:10,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 23:41:10,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 23:41:10,963 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 23:41:10,964 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 23:41:10,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 23:41:10,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 23:41:10,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 23:41:10,967 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 23:41:10,969 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 23:41:10,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 23:41:10,970 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 23:41:10,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 23:41:10,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 23:41:10,976 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 23:41:10,977 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 23:41:10,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 23:41:10,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 23:41:10,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 23:41:10,982 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 23:41:10,982 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 23:41:10,983 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 23:41:10,984 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 23:41:10,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 23:41:10,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 23:41:10,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 23:41:10,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 23:41:10,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 23:41:10,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 23:41:10,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 23:41:10,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 23:41:10,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 23:41:10,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 23:41:10,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 23:41:11,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 23:41:11,004 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 23:41:11,049 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 23:41:11,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 23:41:11,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 23:41:11,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 23:41:11,053 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 23:41:11,053 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 23:41:11,054 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 23:41:11,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 23:41:11,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 23:41:11,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 23:41:11,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 23:41:11,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 23:41:11,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 23:41:11,056 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 23:41:11,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 23:41:11,057 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 23:41:11,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 23:41:11,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 23:41:11,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 23:41:11,057 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 23:41:11,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 23:41:11,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 23:41:11,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 23:41:11,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 23:41:11,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 23:41:11,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 23:41:11,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 23:41:11,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 23:41:11,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 23:41:11,060 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=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; [2020-08-18 23:41:11,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 23:41:11,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 23:41:11,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 23:41:11,413 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 23:41:11,414 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 23:41:11,415 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-08-18 23:41:11,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f15c73428/e941d71689ef496f9886c8edf5fa680a/FLAGf68b67b24 [2020-08-18 23:41:12,090 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 23:41:12,091 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-08-18 23:41:12,116 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f15c73428/e941d71689ef496f9886c8edf5fa680a/FLAGf68b67b24 [2020-08-18 23:41:12,339 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f15c73428/e941d71689ef496f9886c8edf5fa680a [2020-08-18 23:41:12,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 23:41:12,351 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 23:41:12,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 23:41:12,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 23:41:12,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 23:41:12,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:41:12" (1/1) ... [2020-08-18 23:41:12,360 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d022c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:41:12, skipping insertion in model container [2020-08-18 23:41:12,361 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:41:12" (1/1) ... [2020-08-18 23:41:12,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 23:41:12,418 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 23:41:12,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:41:12,837 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 23:41:13,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 23:41:13,066 INFO L208 MainTranslator]: Completed translation [2020-08-18 23:41:13,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:41:13 WrapperNode [2020-08-18 23:41:13,067 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 23:41:13,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 23:41:13,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 23:41:13,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 23:41:13,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:41:13" (1/1) ... [2020-08-18 23:41:13,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:41:13" (1/1) ... [2020-08-18 23:41:13,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:41:13" (1/1) ... [2020-08-18 23:41:13,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:41:13" (1/1) ... [2020-08-18 23:41:13,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:41:13" (1/1) ... [2020-08-18 23:41:13,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:41:13" (1/1) ... [2020-08-18 23:41:13,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:41:13" (1/1) ... [2020-08-18 23:41:13,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 23:41:13,168 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 23:41:13,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 23:41:13,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 23:41:13,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:41:13" (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 23:41:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 23:41:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 23:41:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-18 23:41:13,249 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-18 23:41:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-18 23:41:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-18 23:41:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-18 23:41:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-18 23:41:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-18 23:41:13,250 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-18 23:41:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-18 23:41:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-18 23:41:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-18 23:41:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-18 23:41:13,251 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-18 23:41:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-18 23:41:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-18 23:41:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit14 [2020-08-18 23:41:13,252 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-18 23:41:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-18 23:41:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-18 23:41:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-18 23:41:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-18 23:41:13,253 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-18 23:41:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-18 23:41:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-18 23:41:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-18 23:41:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-18 23:41:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-18 23:41:13,254 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-18 23:41:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-18 23:41:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-18 23:41:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered [2020-08-18 23:41:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-18 23:41:13,255 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-18 23:41:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-18 23:41:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-18 23:41:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-18 23:41:13,256 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-18 23:41:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-18 23:41:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-18 23:41:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-18 23:41:13,257 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-18 23:41:13,258 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-18 23:41:13,258 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-18 23:41:13,258 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-18 23:41:13,258 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 23:41:13,258 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 23:41:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 23:41:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-18 23:41:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-18 23:41:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-18 23:41:13,259 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-18 23:41:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-18 23:41:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-18 23:41:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-18 23:41:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-18 23:41:13,260 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-18 23:41:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-18 23:41:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-18 23:41:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-18 23:41:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-18 23:41:13,261 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-18 23:41:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-18 23:41:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit14_triggered [2020-08-18 23:41:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-18 23:41:13,262 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-18 23:41:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-18 23:41:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-18 23:41:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-18 23:41:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-18 23:41:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-18 23:41:13,263 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-18 23:41:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-18 23:41:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-18 23:41:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-18 23:41:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-18 23:41:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-18 23:41:13,264 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-18 23:41:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-18 23:41:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure transmit14 [2020-08-18 23:41:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-18 23:41:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-18 23:41:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-18 23:41:13,265 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-18 23:41:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-18 23:41:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-18 23:41:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-18 23:41:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-18 23:41:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-18 23:41:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-18 23:41:13,266 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-18 23:41:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-18 23:41:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 23:41:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 23:41:13,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 23:41:14,688 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 23:41:14,688 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-08-18 23:41:14,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:41:14 BoogieIcfgContainer [2020-08-18 23:41:14,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 23:41:14,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 23:41:14,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 23:41:14,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 23:41:14,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 11:41:12" (1/3) ... [2020-08-18 23:41:14,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353d8106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:41:14, skipping insertion in model container [2020-08-18 23:41:14,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:41:13" (2/3) ... [2020-08-18 23:41:14,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353d8106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 11:41:14, skipping insertion in model container [2020-08-18 23:41:14,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 11:41:14" (3/3) ... [2020-08-18 23:41:14,705 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2020-08-18 23:41:14,716 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 23:41:14,725 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 23:41:14,740 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 23:41:14,768 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 23:41:14,769 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 23:41:14,769 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 23:41:14,769 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 23:41:14,769 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 23:41:14,769 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 23:41:14,769 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 23:41:14,770 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 23:41:14,799 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states. [2020-08-18 23:41:14,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-18 23:41:14,819 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:41:14,820 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:41:14,821 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:41:14,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:41:14,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1383974208, now seen corresponding path program 1 times [2020-08-18 23:41:14,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:41:14,838 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1841124972] [2020-08-18 23:41:14,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:41:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:15,755 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-18 23:41:15,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:41:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:15,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:41:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:15,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:41:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:15,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 23:41:15,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 23:41:16,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 23:41:16,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:41:16,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 23:41:16,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 23:41:16,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 23:41:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 23:41:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 23:41:16,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 23:41:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 23:41:16,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 23:41:16,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 23:41:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 23:41:16,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 23:41:16,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 23:41:16,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 23:41:16,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-18 23:41:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-18 23:41:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-18 23:41:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:16,395 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 23:41:16,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1841124972] [2020-08-18 23:41:16,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:41:16,399 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 23:41:16,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692863130] [2020-08-18 23:41:16,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 23:41:16,406 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:41:16,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 23:41:16,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-18 23:41:16,423 INFO L87 Difference]: Start difference. First operand 526 states. Second operand 12 states. [2020-08-18 23:41:16,847 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-18 23:41:17,001 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:41:17,358 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-18 23:41:17,550 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 23:41:20,085 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-18 23:41:20,419 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-08-18 23:41:20,781 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-18 23:41:20,952 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-18 23:41:21,275 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-18 23:41:21,425 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-18 23:41:30,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:41:30,028 INFO L93 Difference]: Finished difference Result 1409 states and 2346 transitions. [2020-08-18 23:41:30,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-18 23:41:30,030 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-08-18 23:41:30,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:41:30,059 INFO L225 Difference]: With dead ends: 1409 [2020-08-18 23:41:30,059 INFO L226 Difference]: Without dead ends: 887 [2020-08-18 23:41:30,072 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-08-18 23:41:30,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-08-18 23:41:30,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 522. [2020-08-18 23:41:30,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2020-08-18 23:41:30,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 765 transitions. [2020-08-18 23:41:30,285 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 765 transitions. Word has length 254 [2020-08-18 23:41:30,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:41:30,285 INFO L479 AbstractCegarLoop]: Abstraction has 522 states and 765 transitions. [2020-08-18 23:41:30,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 23:41:30,286 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 765 transitions. [2020-08-18 23:41:30,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-18 23:41:30,291 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:41:30,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:41:30,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 23:41:30,292 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:41:30,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:41:30,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1062988672, now seen corresponding path program 1 times [2020-08-18 23:41:30,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:41:30,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481182215] [2020-08-18 23:41:30,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:41:30,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:30,734 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-18 23:41:30,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:41:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:30,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:41:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:30,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:41:30,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:30,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 23:41:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:30,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 23:41:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:30,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 23:41:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:41:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 23:41:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 23:41:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 23:41:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 23:41:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 23:41:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 23:41:31,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 23:41:31,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 23:41:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 23:41:31,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 23:41:31,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 23:41:31,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 23:41:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 23:41:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-18 23:41:31,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-18 23:41:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-18 23:41:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:31,321 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 23:41:31,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481182215] [2020-08-18 23:41:31,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:41:31,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 23:41:31,322 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649199956] [2020-08-18 23:41:31,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 23:41:31,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:41:31,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 23:41:31,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-18 23:41:31,345 INFO L87 Difference]: Start difference. First operand 522 states and 765 transitions. Second operand 12 states. [2020-08-18 23:41:31,678 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-18 23:41:31,828 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:41:32,158 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-18 23:41:32,351 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 23:41:34,848 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-18 23:41:35,182 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-08-18 23:41:35,387 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-18 23:41:35,721 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-18 23:41:35,894 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-18 23:41:36,205 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-18 23:41:44,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:41:44,456 INFO L93 Difference]: Finished difference Result 1386 states and 2171 transitions. [2020-08-18 23:41:44,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 23:41:44,457 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-08-18 23:41:44,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:41:44,466 INFO L225 Difference]: With dead ends: 1386 [2020-08-18 23:41:44,467 INFO L226 Difference]: Without dead ends: 888 [2020-08-18 23:41:44,470 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2020-08-18 23:41:44,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2020-08-18 23:41:44,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 527. [2020-08-18 23:41:44,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-08-18 23:41:44,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 769 transitions. [2020-08-18 23:41:44,580 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 769 transitions. Word has length 254 [2020-08-18 23:41:44,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:41:44,581 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 769 transitions. [2020-08-18 23:41:44,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 23:41:44,581 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 769 transitions. [2020-08-18 23:41:44,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-18 23:41:44,586 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:41:44,586 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:41:44,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 23:41:44,587 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:41:44,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:41:44,588 INFO L82 PathProgramCache]: Analyzing trace with hash 458447040, now seen corresponding path program 1 times [2020-08-18 23:41:44,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:41:44,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494730896] [2020-08-18 23:41:44,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:41:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:44,989 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-18 23:41:44,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:41:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:41:45,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:41:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 23:41:45,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 23:41:45,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 23:41:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:41:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 23:41:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 23:41:45,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 23:41:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 23:41:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 23:41:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 23:41:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 23:41:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 23:41:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 23:41:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 23:41:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 23:41:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 23:41:45,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 23:41:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-18 23:41:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-18 23:41:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-18 23:41:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:41:45,434 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 23:41:45,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494730896] [2020-08-18 23:41:45,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:41:45,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 23:41:45,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456869388] [2020-08-18 23:41:45,439 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 23:41:45,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:41:45,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 23:41:45,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 23:41:45,440 INFO L87 Difference]: Start difference. First operand 527 states and 769 transitions. Second operand 9 states. [2020-08-18 23:41:45,768 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-18 23:41:45,914 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 23:41:46,118 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 23:41:53,644 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-18 23:41:53,834 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 23:41:59,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:41:59,629 INFO L93 Difference]: Finished difference Result 2134 states and 3311 transitions. [2020-08-18 23:41:59,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 23:41:59,630 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 254 [2020-08-18 23:41:59,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:41:59,642 INFO L225 Difference]: With dead ends: 2134 [2020-08-18 23:41:59,643 INFO L226 Difference]: Without dead ends: 1639 [2020-08-18 23:41:59,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-18 23:41:59,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2020-08-18 23:41:59,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1040. [2020-08-18 23:41:59,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-08-18 23:41:59,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1532 transitions. [2020-08-18 23:41:59,833 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1532 transitions. Word has length 254 [2020-08-18 23:41:59,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:41:59,834 INFO L479 AbstractCegarLoop]: Abstraction has 1040 states and 1532 transitions. [2020-08-18 23:41:59,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 23:41:59,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1532 transitions. [2020-08-18 23:41:59,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-18 23:41:59,838 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:41:59,838 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:41:59,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 23:41:59,839 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:41:59,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:41:59,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1062661057, now seen corresponding path program 1 times [2020-08-18 23:41:59,839 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:41:59,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296331391] [2020-08-18 23:41:59,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:41:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,182 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-18 23:42:00,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:42:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:42:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:42:00,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 23:42:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 23:42:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 23:42:00,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:42:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 23:42:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 23:42:00,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 23:42:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 23:42:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 23:42:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 23:42:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 23:42:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 23:42:00,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 23:42:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 23:42:00,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 23:42:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 23:42:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 23:42:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-18 23:42:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-18 23:42:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-18 23:42:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:00,671 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 23:42:00,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296331391] [2020-08-18 23:42:00,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:42:00,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 23:42:00,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42941660] [2020-08-18 23:42:00,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 23:42:00,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:42:00,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 23:42:00,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 23:42:00,674 INFO L87 Difference]: Start difference. First operand 1040 states and 1532 transitions. Second operand 10 states. [2020-08-18 23:42:00,987 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-18 23:42:01,164 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 23:42:01,428 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 23:42:09,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 23:42:09,459 INFO L93 Difference]: Finished difference Result 2636 states and 4012 transitions. [2020-08-18 23:42:09,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 23:42:09,459 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2020-08-18 23:42:09,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 23:42:09,469 INFO L225 Difference]: With dead ends: 2636 [2020-08-18 23:42:09,469 INFO L226 Difference]: Without dead ends: 1628 [2020-08-18 23:42:09,473 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-18 23:42:09,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2020-08-18 23:42:09,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1040. [2020-08-18 23:42:09,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-08-18 23:42:09,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1525 transitions. [2020-08-18 23:42:09,631 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1525 transitions. Word has length 254 [2020-08-18 23:42:09,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 23:42:09,632 INFO L479 AbstractCegarLoop]: Abstraction has 1040 states and 1525 transitions. [2020-08-18 23:42:09,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 23:42:09,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1525 transitions. [2020-08-18 23:42:09,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-18 23:42:09,637 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 23:42:09,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 23:42:09,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 23:42:09,638 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 23:42:09,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 23:42:09,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1143415041, now seen corresponding path program 1 times [2020-08-18 23:42:09,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 23:42:09,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1696756598] [2020-08-18 23:42:09,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 23:42:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:09,968 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-18 23:42:09,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 23:42:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 23:42:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 23:42:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 23:42:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 23:42:10,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 23:42:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 23:42:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 23:42:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 23:42:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 23:42:10,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 23:42:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 23:42:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 23:42:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 23:42:10,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 23:42:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 23:42:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 23:42:10,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 23:42:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 23:42:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 23:42:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-18 23:42:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-18 23:42:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-18 23:42:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 23:42:10,462 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 23:42:10,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1696756598] [2020-08-18 23:42:10,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 23:42:10,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 23:42:10,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338565524] [2020-08-18 23:42:10,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 23:42:10,464 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 23:42:10,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 23:42:10,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 23:42:10,465 INFO L87 Difference]: Start difference. First operand 1040 states and 1525 transitions. Second operand 10 states. [2020-08-18 23:42:10,776 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-18 23:42:10,951 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 23:42:11,184 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 135