/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 -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 16:26:00,205 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 16:26:00,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 16:26:00,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 16:26:00,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 16:26:00,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 16:26:00,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 16:26:00,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 16:26:00,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 16:26:00,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 16:26:00,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 16:26:00,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 16:26:00,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 16:26:00,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 16:26:00,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 16:26:00,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 16:26:00,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 16:26:00,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 16:26:00,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 16:26:00,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 16:26:00,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 16:26:00,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 16:26:00,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 16:26:00,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 16:26:00,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 16:26:00,257 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 16:26:00,257 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 16:26:00,258 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 16:26:00,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 16:26:00,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 16:26:00,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 16:26:00,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 16:26:00,264 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 16:26:00,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 16:26:00,267 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 16:26:00,267 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 16:26:00,268 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 16:26:00,268 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 16:26:00,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 16:26:00,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 16:26:00,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 16:26:00,271 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 16:26:00,321 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 16:26:00,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 16:26:00,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 16:26:00,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 16:26:00,329 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 16:26:00,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 16:26:00,329 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 16:26:00,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 16:26:00,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 16:26:00,330 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 16:26:00,330 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 16:26:00,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 16:26:00,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 16:26:00,330 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 16:26:00,331 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 16:26:00,331 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 16:26:00,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 16:26:00,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 16:26:00,331 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 16:26:00,332 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 16:26:00,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 16:26:00,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 16:26:00,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 16:26:00,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 16:26:00,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 16:26:00,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 16:26:00,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 16:26:00,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 16:26:00,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 16:26:00,335 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 [2020-08-18 16:26:00,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 16:26:00,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 16:26:00,656 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 16:26:00,657 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 16:26:00,659 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 16:26:00,660 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-08-18 16:26:00,727 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/618c5e465/beb39dd0758743af9045d26a4268eeb1/FLAGa4f77e04b [2020-08-18 16:26:01,200 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 16:26:01,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.16.cil.c [2020-08-18 16:26:01,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/618c5e465/beb39dd0758743af9045d26a4268eeb1/FLAGa4f77e04b [2020-08-18 16:26:01,502 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/618c5e465/beb39dd0758743af9045d26a4268eeb1 [2020-08-18 16:26:01,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 16:26:01,516 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 16:26:01,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 16:26:01,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 16:26:01,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 16:26:01,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 04:26:01" (1/1) ... [2020-08-18 16:26:01,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@489556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:26:01, skipping insertion in model container [2020-08-18 16:26:01,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 04:26:01" (1/1) ... [2020-08-18 16:26:01,538 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 16:26:01,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 16:26:01,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 16:26:01,949 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 16:26:02,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 16:26:02,210 INFO L208 MainTranslator]: Completed translation [2020-08-18 16:26:02,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:26:02 WrapperNode [2020-08-18 16:26:02,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 16:26:02,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 16:26:02,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 16:26:02,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 16:26:02,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:26:02" (1/1) ... [2020-08-18 16:26:02,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:26:02" (1/1) ... [2020-08-18 16:26:02,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:26:02" (1/1) ... [2020-08-18 16:26:02,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:26:02" (1/1) ... [2020-08-18 16:26:02,262 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:26:02" (1/1) ... [2020-08-18 16:26:02,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:26:02" (1/1) ... [2020-08-18 16:26:02,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:26:02" (1/1) ... [2020-08-18 16:26:02,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 16:26:02,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 16:26:02,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 16:26:02,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 16:26:02,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:26:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 16:26:02,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 16:26:02,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 16:26:02,376 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-08-18 16:26:02,376 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-08-18 16:26:02,376 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-08-18 16:26:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit2 [2020-08-18 16:26:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit3 [2020-08-18 16:26:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit4 [2020-08-18 16:26:02,377 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit5 [2020-08-18 16:26:02,378 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit6 [2020-08-18 16:26:02,378 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit7 [2020-08-18 16:26:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit8 [2020-08-18 16:26:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit9 [2020-08-18 16:26:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit10 [2020-08-18 16:26:02,379 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit11 [2020-08-18 16:26:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit12 [2020-08-18 16:26:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit13 [2020-08-18 16:26:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit14 [2020-08-18 16:26:02,380 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-08-18 16:26:02,381 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-08-18 16:26:02,381 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit2_triggered [2020-08-18 16:26:02,381 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit3_triggered [2020-08-18 16:26:02,381 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit4_triggered [2020-08-18 16:26:02,382 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit5_triggered [2020-08-18 16:26:02,384 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit6_triggered [2020-08-18 16:26:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit7_triggered [2020-08-18 16:26:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit8_triggered [2020-08-18 16:26:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit9_triggered [2020-08-18 16:26:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit10_triggered [2020-08-18 16:26:02,385 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit11_triggered [2020-08-18 16:26:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit12_triggered [2020-08-18 16:26:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit13_triggered [2020-08-18 16:26:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit14_triggered [2020-08-18 16:26:02,386 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-08-18 16:26:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-08-18 16:26:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-08-18 16:26:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-08-18 16:26:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-08-18 16:26:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-08-18 16:26:02,387 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-08-18 16:26:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-08-18 16:26:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-08-18 16:26:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-08-18 16:26:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-08-18 16:26:02,388 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-08-18 16:26:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-08-18 16:26:02,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 16:26:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 16:26:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 16:26:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-08-18 16:26:02,389 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-08-18 16:26:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-08-18 16:26:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit2_triggered [2020-08-18 16:26:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit3_triggered [2020-08-18 16:26:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit4_triggered [2020-08-18 16:26:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit5_triggered [2020-08-18 16:26:02,390 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit6_triggered [2020-08-18 16:26:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit7_triggered [2020-08-18 16:26:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit8_triggered [2020-08-18 16:26:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit9_triggered [2020-08-18 16:26:02,391 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit10_triggered [2020-08-18 16:26:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit11_triggered [2020-08-18 16:26:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit12_triggered [2020-08-18 16:26:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit13_triggered [2020-08-18 16:26:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit14_triggered [2020-08-18 16:26:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-08-18 16:26:02,392 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-08-18 16:26:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-08-18 16:26:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure transmit2 [2020-08-18 16:26:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure transmit3 [2020-08-18 16:26:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure transmit4 [2020-08-18 16:26:02,393 INFO L130 BoogieDeclarations]: Found specification of procedure transmit5 [2020-08-18 16:26:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure transmit6 [2020-08-18 16:26:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure transmit7 [2020-08-18 16:26:02,394 INFO L130 BoogieDeclarations]: Found specification of procedure transmit8 [2020-08-18 16:26:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure transmit9 [2020-08-18 16:26:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure transmit10 [2020-08-18 16:26:02,395 INFO L130 BoogieDeclarations]: Found specification of procedure transmit11 [2020-08-18 16:26:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure transmit12 [2020-08-18 16:26:02,396 INFO L130 BoogieDeclarations]: Found specification of procedure transmit13 [2020-08-18 16:26:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure transmit14 [2020-08-18 16:26:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-08-18 16:26:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-08-18 16:26:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-08-18 16:26:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-08-18 16:26:02,397 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-08-18 16:26:02,398 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-08-18 16:26:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-08-18 16:26:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-08-18 16:26:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-08-18 16:26:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-08-18 16:26:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-08-18 16:26:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-08-18 16:26:02,399 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 16:26:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 16:26:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 16:26:03,685 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 16:26:03,685 INFO L295 CfgBuilder]: Removed 18 assume(true) statements. [2020-08-18 16:26:03,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 04:26:03 BoogieIcfgContainer [2020-08-18 16:26:03,694 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 16:26:03,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 16:26:03,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 16:26:03,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 16:26:03,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 04:26:01" (1/3) ... [2020-08-18 16:26:03,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195271d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 04:26:03, skipping insertion in model container [2020-08-18 16:26:03,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:26:02" (2/3) ... [2020-08-18 16:26:03,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@195271d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 04:26:03, skipping insertion in model container [2020-08-18 16:26:03,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 04:26:03" (3/3) ... [2020-08-18 16:26:03,703 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.16.cil.c [2020-08-18 16:26:03,713 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 16:26:03,721 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 16:26:03,736 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 16:26:03,763 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 16:26:03,764 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 16:26:03,764 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 16:26:03,764 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 16:26:03,764 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 16:26:03,764 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 16:26:03,764 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 16:26:03,764 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 16:26:03,796 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states. [2020-08-18 16:26:03,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-18 16:26:03,816 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:26:03,817 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 16:26:03,818 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:26:03,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:26:03,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1383974208, now seen corresponding path program 1 times [2020-08-18 16:26:03,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:26:03,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1620504804] [2020-08-18 16:26:03,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:26:04,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:04,687 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-18 16:26:04,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:26:04,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:04,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:26:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:04,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:26:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:04,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 16:26:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:04,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 16:26:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:04,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 16:26:04,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:26:05,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 16:26:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 16:26:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 16:26:05,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 16:26:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 16:26:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 16:26:05,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 16:26:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 16:26:05,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 16:26:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 16:26:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 16:26:05,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 16:26:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 16:26:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-18 16:26:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-18 16:26:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-18 16:26:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:05,299 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 16:26:05,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1620504804] [2020-08-18 16:26:05,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:26:05,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 16:26:05,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466740045] [2020-08-18 16:26:05,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 16:26:05,309 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:26:05,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 16:26:05,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-18 16:26:05,327 INFO L87 Difference]: Start difference. First operand 526 states. Second operand 12 states. [2020-08-18 16:26:05,691 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-18 16:26:05,858 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 16:26:06,210 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-18 16:26:06,408 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 16:26:08,789 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-18 16:26:09,141 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-08-18 16:26:09,464 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-18 16:26:09,631 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-18 16:26:09,968 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-18 16:26:10,147 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-18 16:26:18,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:26:18,471 INFO L93 Difference]: Finished difference Result 1409 states and 2346 transitions. [2020-08-18 16:26:18,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-18 16:26:18,473 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-08-18 16:26:18,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:26:18,501 INFO L225 Difference]: With dead ends: 1409 [2020-08-18 16:26:18,501 INFO L226 Difference]: Without dead ends: 887 [2020-08-18 16:26:18,510 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-08-18 16:26:18,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-08-18 16:26:18,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 522. [2020-08-18 16:26:18,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2020-08-18 16:26:18,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 765 transitions. [2020-08-18 16:26:18,709 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 765 transitions. Word has length 254 [2020-08-18 16:26:18,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:26:18,710 INFO L479 AbstractCegarLoop]: Abstraction has 522 states and 765 transitions. [2020-08-18 16:26:18,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 16:26:18,710 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 765 transitions. [2020-08-18 16:26:18,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-18 16:26:18,717 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:26:18,717 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 16:26:18,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 16:26:18,718 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:26:18,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:26:18,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1062988672, now seen corresponding path program 1 times [2020-08-18 16:26:18,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:26:18,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [809183650] [2020-08-18 16:26:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:26:18,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,170 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-18 16:26:19,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:26:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:26:19,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:26:19,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 16:26:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 16:26:19,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 16:26:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:26:19,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 16:26:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 16:26:19,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 16:26:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 16:26:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 16:26:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 16:26:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 16:26:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 16:26:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 16:26:19,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 16:26:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 16:26:19,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 16:26:19,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 16:26:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-18 16:26:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-18 16:26:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-18 16:26:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:19,726 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 16:26:19,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [809183650] [2020-08-18 16:26:19,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:26:19,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-18 16:26:19,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053221382] [2020-08-18 16:26:19,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-18 16:26:19,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:26:19,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-18 16:26:19,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-08-18 16:26:19,746 INFO L87 Difference]: Start difference. First operand 522 states and 765 transitions. Second operand 12 states. [2020-08-18 16:26:20,066 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-18 16:26:20,232 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 16:26:20,588 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-18 16:26:20,785 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 16:26:23,224 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-18 16:26:23,547 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 229 [2020-08-18 16:26:23,721 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-18 16:26:24,041 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-18 16:26:24,216 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2020-08-18 16:26:24,558 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 227 [2020-08-18 16:26:32,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:26:32,587 INFO L93 Difference]: Finished difference Result 1386 states and 2171 transitions. [2020-08-18 16:26:32,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 16:26:32,590 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 254 [2020-08-18 16:26:32,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:26:32,598 INFO L225 Difference]: With dead ends: 1386 [2020-08-18 16:26:32,598 INFO L226 Difference]: Without dead ends: 888 [2020-08-18 16:26:32,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2020-08-18 16:26:32,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2020-08-18 16:26:32,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 527. [2020-08-18 16:26:32,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-08-18 16:26:32,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 769 transitions. [2020-08-18 16:26:32,710 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 769 transitions. Word has length 254 [2020-08-18 16:26:32,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:26:32,711 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 769 transitions. [2020-08-18 16:26:32,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-18 16:26:32,711 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 769 transitions. [2020-08-18 16:26:32,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-18 16:26:32,715 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:26:32,716 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 16:26:32,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 16:26:32,716 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:26:32,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:26:32,717 INFO L82 PathProgramCache]: Analyzing trace with hash 458447040, now seen corresponding path program 1 times [2020-08-18 16:26:32,717 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:26:32,717 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982206779] [2020-08-18 16:26:32,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:26:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,096 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-18 16:26:33,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:26:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:26:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:26:33,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 16:26:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 16:26:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 16:26:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:26:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 16:26:33,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 16:26:33,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 16:26:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 16:26:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 16:26:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 16:26:33,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 16:26:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 16:26:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 16:26:33,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 16:26:33,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 16:26:33,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 16:26:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 16:26:33,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-18 16:26:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-18 16:26:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-18 16:26:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:33,481 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 16:26:33,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982206779] [2020-08-18 16:26:33,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:26:33,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 16:26:33,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398450251] [2020-08-18 16:26:33,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 16:26:33,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:26:33,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 16:26:33,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 16:26:33,483 INFO L87 Difference]: Start difference. First operand 527 states and 769 transitions. Second operand 9 states. [2020-08-18 16:26:33,804 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-18 16:26:33,963 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 16:26:34,200 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 16:26:41,876 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 226 [2020-08-18 16:26:42,068 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-08-18 16:26:47,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:26:47,644 INFO L93 Difference]: Finished difference Result 2134 states and 3311 transitions. [2020-08-18 16:26:47,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-18 16:26:47,645 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 254 [2020-08-18 16:26:47,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:26:47,658 INFO L225 Difference]: With dead ends: 2134 [2020-08-18 16:26:47,658 INFO L226 Difference]: Without dead ends: 1639 [2020-08-18 16:26:47,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2020-08-18 16:26:47,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2020-08-18 16:26:47,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1040. [2020-08-18 16:26:47,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-08-18 16:26:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1532 transitions. [2020-08-18 16:26:47,863 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1532 transitions. Word has length 254 [2020-08-18 16:26:47,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:26:47,864 INFO L479 AbstractCegarLoop]: Abstraction has 1040 states and 1532 transitions. [2020-08-18 16:26:47,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 16:26:47,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1532 transitions. [2020-08-18 16:26:47,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-18 16:26:47,868 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:26:47,868 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 16:26:47,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 16:26:47,869 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:26:47,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:26:47,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1062661057, now seen corresponding path program 1 times [2020-08-18 16:26:47,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:26:47,870 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [241409027] [2020-08-18 16:26:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:26:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,274 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-18 16:26:48,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:26:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:26:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:26:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 16:26:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 16:26:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 16:26:48,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:26:48,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 16:26:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 16:26:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 16:26:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 16:26:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 16:26:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 16:26:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 16:26:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 16:26:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 16:26:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 16:26:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 16:26:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 16:26:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 16:26:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-18 16:26:48,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-18 16:26:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-18 16:26:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:48,753 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 16:26:48,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [241409027] [2020-08-18 16:26:48,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:26:48,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 16:26:48,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273473680] [2020-08-18 16:26:48,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 16:26:48,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:26:48,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 16:26:48,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 16:26:48,757 INFO L87 Difference]: Start difference. First operand 1040 states and 1532 transitions. Second operand 10 states. [2020-08-18 16:26:49,209 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-18 16:26:49,415 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 16:26:49,708 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 16:26:57,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:26:57,618 INFO L93 Difference]: Finished difference Result 2636 states and 4012 transitions. [2020-08-18 16:26:57,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-18 16:26:57,619 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 254 [2020-08-18 16:26:57,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:26:57,630 INFO L225 Difference]: With dead ends: 2636 [2020-08-18 16:26:57,630 INFO L226 Difference]: Without dead ends: 1628 [2020-08-18 16:26:57,635 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2020-08-18 16:26:57,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2020-08-18 16:26:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1040. [2020-08-18 16:26:57,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2020-08-18 16:26:57,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1525 transitions. [2020-08-18 16:26:57,820 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1525 transitions. Word has length 254 [2020-08-18 16:26:57,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:26:57,820 INFO L479 AbstractCegarLoop]: Abstraction has 1040 states and 1525 transitions. [2020-08-18 16:26:57,820 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-18 16:26:57,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1525 transitions. [2020-08-18 16:26:57,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2020-08-18 16:26:57,825 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:26:57,825 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 16:26:57,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 16:26:57,825 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:26:57,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:26:57,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1143415041, now seen corresponding path program 1 times [2020-08-18 16:26:57,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:26:57,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620495200] [2020-08-18 16:26:57,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:26:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,175 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2020-08-18 16:26:58,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:26:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 16:26:58,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 16:26:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-18 16:26:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 16:26:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-08-18 16:26:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 16:26:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-18 16:26:58,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-08-18 16:26:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-18 16:26:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 16:26:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-18 16:26:58,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-08-18 16:26:58,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 16:26:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-08-18 16:26:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-08-18 16:26:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-18 16:26:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-18 16:26:58,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-08-18 16:26:58,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-18 16:26:58,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-18 16:26:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-08-18 16:26:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-18 16:26:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:26:58,653 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 16:26:58,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620495200] [2020-08-18 16:26:58,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:26:58,655 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-18 16:26:58,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118762428] [2020-08-18 16:26:58,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-18 16:26:58,656 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:26:58,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-18 16:26:58,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-18 16:26:58,657 INFO L87 Difference]: Start difference. First operand 1040 states and 1525 transitions. Second operand 10 states. [2020-08-18 16:26:58,942 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2020-08-18 16:26:59,088 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-08-18 16:26:59,303 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 135