/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 produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:33:20,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:33:20,164 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:33:20,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:33:20,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:33:20,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:33:20,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:33:20,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:33:20,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:33:20,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:33:20,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:33:20,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:33:20,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:33:20,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:33:20,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:33:20,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:33:20,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:33:20,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:33:20,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:33:20,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:33:20,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:33:20,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:33:20,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:33:20,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:33:20,264 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:33:20,265 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:33:20,265 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:33:20,268 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:33:20,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:33:20,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:33:20,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:33:20,270 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:33:20,271 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:33:20,272 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:33:20,274 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:33:20,274 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:33:20,275 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:33:20,275 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:33:20,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:33:20,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:33:20,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:33:20,279 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 [2020-09-21 11:33:20,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:33:20,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:33:20,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:33:20,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:33:20,326 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:33:20,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:33:20,326 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:33:20,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:33:20,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:33:20,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:33:20,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:33:20,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:33:20,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:33:20,329 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:33:20,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:33:20,329 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:33:20,330 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:33:20,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:33:20,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:33:20,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:33:20,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:33:20,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:33:20,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:33:20,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:33:20,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:33:20,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:33:20,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:33:20,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:33:20,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:33:20,332 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 -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:33:20,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:33:20,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:33:20,840 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:33:20,842 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:33:20,842 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:33:20,843 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-09-21 11:33:20,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aaec4f6fc/8d63ebd363d947888a15237ce8a30c29/FLAG9ccdf5f1e [2020-09-21 11:33:21,526 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:33:21,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/systemc/transmitter.01.cil.c [2020-09-21 11:33:21,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aaec4f6fc/8d63ebd363d947888a15237ce8a30c29/FLAG9ccdf5f1e [2020-09-21 11:33:21,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/aaec4f6fc/8d63ebd363d947888a15237ce8a30c29 [2020-09-21 11:33:21,834 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:33:21,840 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:33:21,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:33:21,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:33:21,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:33:21,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:33:21" (1/1) ... [2020-09-21 11:33:21,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee4d01a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:21, skipping insertion in model container [2020-09-21 11:33:21,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:33:21" (1/1) ... [2020-09-21 11:33:21,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:33:21,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:33:22,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:33:22,144 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:33:22,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:33:22,205 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:33:22,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:22 WrapperNode [2020-09-21 11:33:22,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:33:22,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:33:22,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:33:22,208 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:33:22,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:22" (1/1) ... [2020-09-21 11:33:22,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:22" (1/1) ... [2020-09-21 11:33:22,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:22" (1/1) ... [2020-09-21 11:33:22,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:22" (1/1) ... [2020-09-21 11:33:22,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:22" (1/1) ... [2020-09-21 11:33:22,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:22" (1/1) ... [2020-09-21 11:33:22,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:22" (1/1) ... [2020-09-21 11:33:22,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:33:22,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:33:22,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:33:22,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:33:22,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:22" (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 [2020-09-21 11:33:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:33:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:33:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2020-09-21 11:33:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure master [2020-09-21 11:33:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit1 [2020-09-21 11:33:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure is_master_triggered [2020-09-21 11:33:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure is_transmit1_triggered [2020-09-21 11:33:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2020-09-21 11:33:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure init_threads [2020-09-21 11:33:22,430 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2020-09-21 11:33:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-09-21 11:33:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2020-09-21 11:33:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2020-09-21 11:33:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2020-09-21 11:33:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2020-09-21 11:33:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_time_events [2020-09-21 11:33:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_time_events [2020-09-21 11:33:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure init_model [2020-09-21 11:33:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_simulation [2020-09-21 11:33:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure start_simulation [2020-09-21 11:33:22,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:33:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:33:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:33:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure error [2020-09-21 11:33:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure is_master_triggered [2020-09-21 11:33:22,433 INFO L130 BoogieDeclarations]: Found specification of procedure is_transmit1_triggered [2020-09-21 11:33:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2020-09-21 11:33:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure master [2020-09-21 11:33:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure transmit1 [2020-09-21 11:33:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2020-09-21 11:33:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure init_threads [2020-09-21 11:33:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2020-09-21 11:33:22,434 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-09-21 11:33:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2020-09-21 11:33:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2020-09-21 11:33:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2020-09-21 11:33:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure fire_time_events [2020-09-21 11:33:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure reset_time_events [2020-09-21 11:33:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure init_model [2020-09-21 11:33:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure stop_simulation [2020-09-21 11:33:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure start_simulation [2020-09-21 11:33:22,435 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:33:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:33:22,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:33:22,977 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:33:22,977 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:33:22,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:33:22 BoogieIcfgContainer [2020-09-21 11:33:22,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:33:22,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:33:22,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:33:22,992 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:33:22,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:33:21" (1/3) ... [2020-09-21 11:33:22,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515f1c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:33:22, skipping insertion in model container [2020-09-21 11:33:22,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:33:22" (2/3) ... [2020-09-21 11:33:22,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@515f1c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:33:22, skipping insertion in model container [2020-09-21 11:33:22,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:33:22" (3/3) ... [2020-09-21 11:33:22,997 INFO L109 eAbstractionObserver]: Analyzing ICFG transmitter.01.cil.c [2020-09-21 11:33:23,010 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:33:23,021 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:33:23,042 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:33:23,073 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:33:23,073 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:33:23,074 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:33:23,074 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:33:23,074 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:33:23,074 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:33:23,074 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:33:23,074 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:33:23,104 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2020-09-21 11:33:23,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-21 11:33:23,118 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:23,119 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] [2020-09-21 11:33:23,120 INFO L427 AbstractCegarLoop]: === Iteration 1 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:23,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:23,129 INFO L82 PathProgramCache]: Analyzing trace with hash -1024647557, now seen corresponding path program 1 times [2020-09-21 11:33:23,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:23,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690118404] [2020-09-21 11:33:23,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,497 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-21 11:33:23,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-09-21 11:33:23,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:33:23,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:33:23,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-21 11:33:23,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:23,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,656 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,657 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,657 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,657 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:23,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:33:23,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:23,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:23,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:23,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:23,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:23,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,691 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,691 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:23,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:23,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:23,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:23,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:23,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,705 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,705 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,705 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:23,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:23,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:23,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:23,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:23,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:23,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,734 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,734 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,734 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:23,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:33:23,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:23,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:23,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:23,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:23,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,797 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,798 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,798 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,798 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:23,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:33:23,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:23,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:23,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:33:23,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:23,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,848 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,849 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,849 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:23,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:23,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:23,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:23,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:23,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:23,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,863 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,863 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,864 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,864 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:23,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:23,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:23,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:23,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:23,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:23,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:23,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:23,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:23,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:23,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:23,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:23,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:33:23,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,886 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,887 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,887 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,888 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:23,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:23,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:23,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:23,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:23,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:23,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:33:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:23,897 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:23,898 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:23,898 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:23,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:23,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:23,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:23,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:23,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:23,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:23,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:23,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:23,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:23,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:23,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690118404] [2020-09-21 11:33:23,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:23,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:33:23,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096812457] [2020-09-21 11:33:23,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:33:23,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:23,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:33:23,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:33:23,973 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 8 states. [2020-09-21 11:33:25,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:25,870 INFO L93 Difference]: Finished difference Result 483 states and 729 transitions. [2020-09-21 11:33:25,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 11:33:25,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2020-09-21 11:33:25,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:25,894 INFO L225 Difference]: With dead ends: 483 [2020-09-21 11:33:25,894 INFO L226 Difference]: Without dead ends: 344 [2020-09-21 11:33:25,901 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-21 11:33:25,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2020-09-21 11:33:25,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 233. [2020-09-21 11:33:26,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-09-21 11:33:26,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 301 transitions. [2020-09-21 11:33:26,005 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 301 transitions. Word has length 75 [2020-09-21 11:33:26,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:26,006 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 301 transitions. [2020-09-21 11:33:26,006 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:33:26,006 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 301 transitions. [2020-09-21 11:33:26,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-21 11:33:26,010 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:26,011 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] [2020-09-21 11:33:26,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:33:26,011 INFO L427 AbstractCegarLoop]: === Iteration 2 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:26,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:26,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1022106246, now seen corresponding path program 1 times [2020-09-21 11:33:26,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:26,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711540578] [2020-09-21 11:33:26,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,114 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,114 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,114 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,118 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-21 11:33:26,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-21 11:33:26,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:33:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:33:26,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:33:26,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,199 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,200 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,200 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,200 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:26,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:26,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:26,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:26,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:26,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,222 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,222 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,222 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,222 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:26,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:26,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:26,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,229 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,230 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,230 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,230 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:26,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:26,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:26,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:26,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,251 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,251 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:26,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:26,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:26,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:26,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,278 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,278 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,278 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,279 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:26,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:33:26,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:26,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:33:26,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,313 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,313 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,313 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,314 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:26,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:26,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:26,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,323 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,323 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,324 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,324 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:26,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:26,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,330 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,330 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,330 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,331 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:26,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:26,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:33:26,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,338 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,338 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,339 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,339 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:26,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:26,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:33:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:26,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:26,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:26,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:26,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:26,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:26,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:26,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:26,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:26,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:26,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:26,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:26,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:26,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:26,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711540578] [2020-09-21 11:33:26,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:26,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:33:26,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714604034] [2020-09-21 11:33:26,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:33:26,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:26,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:33:26,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:26,362 INFO L87 Difference]: Start difference. First operand 233 states and 301 transitions. Second operand 10 states. [2020-09-21 11:33:28,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:28,190 INFO L93 Difference]: Finished difference Result 687 states and 935 transitions. [2020-09-21 11:33:28,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:33:28,191 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 75 [2020-09-21 11:33:28,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:28,196 INFO L225 Difference]: With dead ends: 687 [2020-09-21 11:33:28,197 INFO L226 Difference]: Without dead ends: 473 [2020-09-21 11:33:28,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:33:28,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2020-09-21 11:33:28,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 328. [2020-09-21 11:33:28,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-09-21 11:33:28,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 411 transitions. [2020-09-21 11:33:28,258 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 411 transitions. Word has length 75 [2020-09-21 11:33:28,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:28,259 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 411 transitions. [2020-09-21 11:33:28,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:33:28,259 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 411 transitions. [2020-09-21 11:33:28,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-21 11:33:28,262 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:28,262 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] [2020-09-21 11:33:28,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:33:28,262 INFO L427 AbstractCegarLoop]: === Iteration 3 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:28,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:28,263 INFO L82 PathProgramCache]: Analyzing trace with hash -437656962, now seen corresponding path program 1 times [2020-09-21 11:33:28,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:28,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953022166] [2020-09-21 11:33:28,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:28,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,290 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,290 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,291 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-21 11:33:28,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:33:28,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-09-21 11:33:28,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:28,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,334 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,335 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,335 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,335 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:28,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:28,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:28,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,353 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,353 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,354 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,354 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:28,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,355 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:28,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:28,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,359 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,359 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,359 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,360 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:28,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:28,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,373 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,374 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,374 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:28,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:28,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,392 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,392 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,392 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,392 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:28,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:28,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,410 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,411 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,411 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,411 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:28,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:33:28,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:28,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:28,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,460 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,460 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,460 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,460 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:28,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:28,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:28,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:28,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,496 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,497 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,497 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:28,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-21 11:33:28,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:33:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,504 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,504 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,504 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:28,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:28,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:33:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:28,511 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:28,511 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:28,511 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:28,512 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:28,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:28,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:28,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:28,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:28,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:28,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:28,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:28,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:28,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:28,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1953022166] [2020-09-21 11:33:28,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:28,523 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:33:28,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114457162] [2020-09-21 11:33:28,524 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:33:28,524 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:28,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:33:28,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:28,524 INFO L87 Difference]: Start difference. First operand 328 states and 411 transitions. Second operand 10 states. [2020-09-21 11:33:29,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:29,916 INFO L93 Difference]: Finished difference Result 777 states and 1037 transitions. [2020-09-21 11:33:29,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:33:29,916 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 75 [2020-09-21 11:33:29,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:29,921 INFO L225 Difference]: With dead ends: 777 [2020-09-21 11:33:29,921 INFO L226 Difference]: Without dead ends: 469 [2020-09-21 11:33:29,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:33:29,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-09-21 11:33:29,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 333. [2020-09-21 11:33:29,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-09-21 11:33:29,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 414 transitions. [2020-09-21 11:33:29,989 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 414 transitions. Word has length 75 [2020-09-21 11:33:29,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:29,991 INFO L479 AbstractCegarLoop]: Abstraction has 333 states and 414 transitions. [2020-09-21 11:33:29,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:33:29,991 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 414 transitions. [2020-09-21 11:33:29,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-09-21 11:33:29,994 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:29,994 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] [2020-09-21 11:33:29,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:33:29,994 INFO L427 AbstractCegarLoop]: === Iteration 4 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:29,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:29,997 INFO L82 PathProgramCache]: Analyzing trace with hash 2011943168, now seen corresponding path program 1 times [2020-09-21 11:33:29,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:29,997 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43382003] [2020-09-21 11:33:29,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,056 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,057 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,057 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,057 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-09-21 11:33:30,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-21 11:33:30,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:33:30,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:33:30,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-21 11:33:30,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:30,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,119 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,121 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,121 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,121 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:30,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:30,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:30,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,148 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,148 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,148 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,149 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:30,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:30,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:30,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,156 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,156 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,156 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,157 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:30,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:30,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,179 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:30,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:30,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:30,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,198 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:30,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:30,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,213 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,213 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,213 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,213 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:30,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-21 11:33:30,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:33:30,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:30,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,238 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,238 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:30,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:30,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:30,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:30,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,251 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,251 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,251 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,251 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:30,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:30,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:30,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:33:30,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:33:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,260 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,260 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,260 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,264 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:30,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:30,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:30,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:30,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:30,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:30,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:33:30,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:30,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:30,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:30,273 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:30,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:30,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:30,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:30,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:30,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:30,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:30,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:30,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:30,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:30,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:33:30,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43382003] [2020-09-21 11:33:30,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:30,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:33:30,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569329077] [2020-09-21 11:33:30,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:33:30,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:30,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:33:30,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:33:30,299 INFO L87 Difference]: Start difference. First operand 333 states and 414 transitions. Second operand 9 states. [2020-09-21 11:33:32,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:32,299 INFO L93 Difference]: Finished difference Result 1206 states and 1638 transitions. [2020-09-21 11:33:32,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:33:32,299 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 75 [2020-09-21 11:33:32,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:32,305 INFO L225 Difference]: With dead ends: 1206 [2020-09-21 11:33:32,306 INFO L226 Difference]: Without dead ends: 893 [2020-09-21 11:33:32,308 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2020-09-21 11:33:32,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2020-09-21 11:33:32,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 651. [2020-09-21 11:33:32,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 651 states. [2020-09-21 11:33:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 651 states to 651 states and 811 transitions. [2020-09-21 11:33:32,386 INFO L78 Accepts]: Start accepts. Automaton has 651 states and 811 transitions. Word has length 75 [2020-09-21 11:33:32,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:32,386 INFO L479 AbstractCegarLoop]: Abstraction has 651 states and 811 transitions. [2020-09-21 11:33:32,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:33:32,387 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states and 811 transitions. [2020-09-21 11:33:32,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-21 11:33:32,396 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:32,396 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:32,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:33:32,396 INFO L427 AbstractCegarLoop]: === Iteration 5 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:32,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:32,397 INFO L82 PathProgramCache]: Analyzing trace with hash -3480132, now seen corresponding path program 1 times [2020-09-21 11:33:32,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:32,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [928024451] [2020-09-21 11:33:32,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,426 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,427 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,427 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:33:32,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:33:32,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-21 11:33:32,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:32,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,473 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,473 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,473 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,473 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:32,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,485 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,486 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:32,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,491 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,492 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,492 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,492 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:32,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,506 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,507 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,507 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,507 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:32,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,531 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,531 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,531 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:32,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,545 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,545 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,545 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,545 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:32,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:32,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:33:32,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-21 11:33:32,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:32,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:32,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,570 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,570 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,570 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,571 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:32,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:33:32,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:32,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,578 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,579 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,579 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,579 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:32,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:32,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:32,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:32,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:32,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:33:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,602 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,602 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,603 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:32,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:33:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,608 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,609 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,609 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,609 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:32,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:32,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:33:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,636 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,637 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,637 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,637 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:32,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:32,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 11:33:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:32,652 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:32,652 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:32,653 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:32,653 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:32,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:32,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:32,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:32,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:32,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:32,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:32,664 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-21 11:33:32,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [928024451] [2020-09-21 11:33:32,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:32,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:33:32,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853402849] [2020-09-21 11:33:32,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:33:32,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:32,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:33:32,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:33:32,667 INFO L87 Difference]: Start difference. First operand 651 states and 811 transitions. Second operand 11 states. [2020-09-21 11:33:34,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:34,305 INFO L93 Difference]: Finished difference Result 1598 states and 2147 transitions. [2020-09-21 11:33:34,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 11:33:34,306 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-09-21 11:33:34,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:34,314 INFO L225 Difference]: With dead ends: 1598 [2020-09-21 11:33:34,314 INFO L226 Difference]: Without dead ends: 967 [2020-09-21 11:33:34,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2020-09-21 11:33:34,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2020-09-21 11:33:34,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 783. [2020-09-21 11:33:34,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2020-09-21 11:33:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 1007 transitions. [2020-09-21 11:33:34,390 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 1007 transitions. Word has length 93 [2020-09-21 11:33:34,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:34,391 INFO L479 AbstractCegarLoop]: Abstraction has 783 states and 1007 transitions. [2020-09-21 11:33:34,391 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:33:34,391 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 1007 transitions. [2020-09-21 11:33:34,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-21 11:33:34,392 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:34,393 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:34,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:33:34,393 INFO L427 AbstractCegarLoop]: === Iteration 6 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:34,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:34,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1935681914, now seen corresponding path program 1 times [2020-09-21 11:33:34,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:34,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794911474] [2020-09-21 11:33:34,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,456 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,456 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,456 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:33:34,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-21 11:33:34,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:33:34,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:33:34,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-21 11:33:34,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,529 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,529 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:34,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:33:34,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:34,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:34,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,551 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,552 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,552 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,552 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:34,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:34,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:34,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:34,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,560 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,560 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,561 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,561 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:34,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:34,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:34,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:34,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,581 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,581 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,582 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,582 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:34,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:34,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:34,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:33:34,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,613 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,614 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,614 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:34,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:33:34,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:34,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:34,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:33:34,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:34,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,671 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,672 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,672 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,672 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:34,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:34,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:34,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-21 11:33:34,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,683 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,683 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,684 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,684 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:34,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:34,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,692 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,692 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:34,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:34,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:34,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:34,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:33:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,704 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,704 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,704 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,705 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:34,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:33:34,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:33:34,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:33:34,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-21 11:33:34,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 38 [2020-09-21 11:33:34,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:33:34,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,799 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,799 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:34,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:34,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:34,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:34,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:33:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,823 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,823 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,824 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,824 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:34,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:34,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:34,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:34,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 11:33:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:34,830 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:34,830 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:34,831 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:34,831 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:34,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:34,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:34,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:34,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:34,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:34,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:34,843 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-09-21 11:33:34,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794911474] [2020-09-21 11:33:34,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:34,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-21 11:33:34,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247655985] [2020-09-21 11:33:34,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-21 11:33:34,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:34,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-21 11:33:34,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:33:34,848 INFO L87 Difference]: Start difference. First operand 783 states and 1007 transitions. Second operand 11 states. [2020-09-21 11:33:36,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:36,213 INFO L93 Difference]: Finished difference Result 1810 states and 2335 transitions. [2020-09-21 11:33:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-21 11:33:36,214 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 93 [2020-09-21 11:33:36,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:36,221 INFO L225 Difference]: With dead ends: 1810 [2020-09-21 11:33:36,221 INFO L226 Difference]: Without dead ends: 1046 [2020-09-21 11:33:36,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2020-09-21 11:33:36,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2020-09-21 11:33:36,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 928. [2020-09-21 11:33:36,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-09-21 11:33:36,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1132 transitions. [2020-09-21 11:33:36,295 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1132 transitions. Word has length 93 [2020-09-21 11:33:36,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:36,296 INFO L479 AbstractCegarLoop]: Abstraction has 928 states and 1132 transitions. [2020-09-21 11:33:36,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-21 11:33:36,296 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1132 transitions. [2020-09-21 11:33:36,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-21 11:33:36,298 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:36,298 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:36,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:33:36,298 INFO L427 AbstractCegarLoop]: === Iteration 7 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:36,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:36,299 INFO L82 PathProgramCache]: Analyzing trace with hash -2111138888, now seen corresponding path program 1 times [2020-09-21 11:33:36,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:36,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [615088541] [2020-09-21 11:33:36,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,322 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,322 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,323 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,323 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-09-21 11:33:36,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:36,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:36,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-21 11:33:36,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:36,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:36,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,368 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,369 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,369 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,369 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:36,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:36,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:36,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,384 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,384 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,384 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,384 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:36,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:36,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,389 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,389 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,389 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:36,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:36,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,403 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,403 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,404 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:36,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:36,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:36,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,419 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,419 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,420 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,420 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:36,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:36,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,426 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,426 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,427 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:36,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:36,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,436 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,436 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,437 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:36,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:36,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:36,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,444 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:36,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:36,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:33:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,452 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,453 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:36,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:36,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:33:36,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,461 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,461 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,461 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,462 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:36,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:36,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:33:36,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:36,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 11:33:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,485 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,485 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:36,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:36,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-09-21 11:33:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:36,494 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:36,494 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:36,494 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:36,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:36,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:36,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:36,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:36,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:36,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:36,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:36,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:36,511 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 11:33:36,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [615088541] [2020-09-21 11:33:36,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:33:36,513 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:33:36,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817027348] [2020-09-21 11:33:36,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:33:36,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:36,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:33:36,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:33:36,515 INFO L87 Difference]: Start difference. First operand 928 states and 1132 transitions. Second operand 8 states. [2020-09-21 11:33:38,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:38,247 INFO L93 Difference]: Finished difference Result 2746 states and 3637 transitions. [2020-09-21 11:33:38,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 11:33:38,248 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 93 [2020-09-21 11:33:38,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:38,266 INFO L225 Difference]: With dead ends: 2746 [2020-09-21 11:33:38,266 INFO L226 Difference]: Without dead ends: 1839 [2020-09-21 11:33:38,273 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:33:38,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2020-09-21 11:33:38,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1574. [2020-09-21 11:33:38,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1574 states. [2020-09-21 11:33:38,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 1990 transitions. [2020-09-21 11:33:38,451 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 1990 transitions. Word has length 93 [2020-09-21 11:33:38,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:38,451 INFO L479 AbstractCegarLoop]: Abstraction has 1574 states and 1990 transitions. [2020-09-21 11:33:38,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:33:38,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 1990 transitions. [2020-09-21 11:33:38,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-09-21 11:33:38,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:38,456 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:38,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:33:38,456 INFO L427 AbstractCegarLoop]: === Iteration 8 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:38,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:38,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1397737794, now seen corresponding path program 1 times [2020-09-21 11:33:38,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:38,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334645541] [2020-09-21 11:33:38,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,486 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,487 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 11:33:38,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:33:38,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:38,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-09-21 11:33:38,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:33:38,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:38,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,564 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,565 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,565 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,565 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:38,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,584 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,584 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:38,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:38,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:38,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,591 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:38,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,611 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,611 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,611 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,612 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:38,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:38,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,629 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,629 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,629 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,629 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:38,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,635 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,635 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,636 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,636 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:38,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:33:38,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:38,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:38,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,648 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,648 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,648 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,649 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:38,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:33:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,654 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,654 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,654 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,655 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:38,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:33:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,661 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,661 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,661 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,661 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:38,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:38,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:38,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:33:38,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,684 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,685 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,685 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,685 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:38,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:38,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:33:38,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:38,691 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:38,691 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:38,692 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:38,692 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:38,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:38,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:38,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:38,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:38,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:38,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:38,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:33:38,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:38,702 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 11:33:38,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334645541] [2020-09-21 11:33:38,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:38,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:33:38,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129240432] [2020-09-21 11:33:38,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:33:38,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:38,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:33:38,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:33:38,705 INFO L87 Difference]: Start difference. First operand 1574 states and 1990 transitions. Second operand 8 states. [2020-09-21 11:33:40,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:40,474 INFO L93 Difference]: Finished difference Result 4946 states and 6547 transitions. [2020-09-21 11:33:40,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-21 11:33:40,475 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 95 [2020-09-21 11:33:40,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:40,491 INFO L225 Difference]: With dead ends: 4946 [2020-09-21 11:33:40,491 INFO L226 Difference]: Without dead ends: 2625 [2020-09-21 11:33:40,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:33:40,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2020-09-21 11:33:40,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 2130. [2020-09-21 11:33:40,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2130 states. [2020-09-21 11:33:40,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2608 transitions. [2020-09-21 11:33:40,667 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2608 transitions. Word has length 95 [2020-09-21 11:33:40,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:40,667 INFO L479 AbstractCegarLoop]: Abstraction has 2130 states and 2608 transitions. [2020-09-21 11:33:40,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:33:40,667 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2608 transitions. [2020-09-21 11:33:40,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-21 11:33:40,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:40,670 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:40,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:33:40,671 INFO L427 AbstractCegarLoop]: === Iteration 9 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:40,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:40,671 INFO L82 PathProgramCache]: Analyzing trace with hash -2094315367, now seen corresponding path program 1 times [2020-09-21 11:33:40,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:40,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1513660748] [2020-09-21 11:33:40,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,693 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,693 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,693 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-21 11:33:40,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:40,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:40,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-21 11:33:40,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-21 11:33:40,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:40,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:40,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:33:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,755 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,755 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,755 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,755 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:33:40,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:33:40,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:40,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:40,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:33:40,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:33:40,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,762 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,762 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:33:40,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:40,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:40,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:33:40,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-09-21 11:33:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,778 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,778 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,778 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,779 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:33:40,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:33:40,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-21 11:33:40,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:33:40,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-21 11:33:40,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:40,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:40,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-21 11:33:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,815 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,815 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,815 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,815 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:40,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-21 11:33:40,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,822 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,822 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,822 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:40,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:40,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,827 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,827 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,828 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:40,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:40,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-09-21 11:33:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,833 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,833 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,833 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,833 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:40,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:40,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:33:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,839 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,839 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,839 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,839 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:40,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:40,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 11:33:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,860 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,860 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,860 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,860 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:40,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:40,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:33:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,867 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,867 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:33:40,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:33:40,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-09-21 11:33:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,895 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,895 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,895 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,895 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-21 11:33:40,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-09-21 11:33:40,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-21 11:33:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,908 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,908 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,909 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,909 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:33:40,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:40,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:33:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,919 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,919 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,920 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-21 11:33:40,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:40,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:33:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,927 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,928 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,928 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:40,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:40,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-21 11:33:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:33:40,933 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:33:40,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:33:40,934 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:33:40,934 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:33:40,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-21 11:33:40,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:33:40,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:33:40,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:33:40,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:33:40,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:33:40,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:33:40,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:33:40,955 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-09-21 11:33:40,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1513660748] [2020-09-21 11:33:40,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:33:40,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:33:40,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808546742] [2020-09-21 11:33:40,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:33:40,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:33:40,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:33:40,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:33:40,963 INFO L87 Difference]: Start difference. First operand 2130 states and 2608 transitions. Second operand 10 states. [2020-09-21 11:33:42,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:33:42,124 INFO L93 Difference]: Finished difference Result 4728 states and 5988 transitions. [2020-09-21 11:33:42,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-21 11:33:42,125 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 129 [2020-09-21 11:33:42,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:33:42,141 INFO L225 Difference]: With dead ends: 4728 [2020-09-21 11:33:42,142 INFO L226 Difference]: Without dead ends: 2619 [2020-09-21 11:33:42,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2020-09-21 11:33:42,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2020-09-21 11:33:42,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2124. [2020-09-21 11:33:42,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2124 states. [2020-09-21 11:33:42,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 2598 transitions. [2020-09-21 11:33:42,340 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 2598 transitions. Word has length 129 [2020-09-21 11:33:42,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:33:42,340 INFO L479 AbstractCegarLoop]: Abstraction has 2124 states and 2598 transitions. [2020-09-21 11:33:42,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:33:42,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 2598 transitions. [2020-09-21 11:33:42,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-09-21 11:33:42,347 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:33:42,347 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:33:42,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:33:42,348 INFO L427 AbstractCegarLoop]: === Iteration 10 === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:33:42,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:33:42,348 INFO L82 PathProgramCache]: Analyzing trace with hash 473506967, now seen corresponding path program 1 times [2020-09-21 11:33:42,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:33:42,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906338098] [2020-09-21 11:33:42,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:33:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:33:42,391 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:33:42,391 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:33:42,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:33:42,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:33:42 BoogieIcfgContainer [2020-09-21 11:33:42,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:33:42,465 INFO L168 Benchmark]: Toolchain (without parser) took 20628.00 ms. Allocated memory was 148.9 MB in the beginning and 460.8 MB in the end (delta: 312.0 MB). Free memory was 105.0 MB in the beginning and 181.1 MB in the end (delta: -76.1 MB). Peak memory consumption was 235.8 MB. Max. memory is 7.1 GB. [2020-09-21 11:33:42,467 INFO L168 Benchmark]: CDTParser took 0.90 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:33:42,468 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.72 ms. Allocated memory is still 148.9 MB. Free memory was 104.3 MB in the beginning and 91.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:33:42,469 INFO L168 Benchmark]: Boogie Preprocessor took 146.99 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 91.2 MB in the beginning and 182.9 MB in the end (delta: -91.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:33:42,472 INFO L168 Benchmark]: RCFGBuilder took 632.49 ms. Allocated memory is still 205.5 MB. Free memory was 182.9 MB in the beginning and 152.6 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2020-09-21 11:33:42,476 INFO L168 Benchmark]: TraceAbstraction took 19472.96 ms. Allocated memory was 205.5 MB in the beginning and 460.8 MB in the end (delta: 255.3 MB). Free memory was 152.0 MB in the beginning and 181.1 MB in the end (delta: -29.1 MB). Peak memory consumption was 226.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:33:42,489 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 364.72 ms. Allocated memory is still 148.9 MB. Free memory was 104.3 MB in the beginning and 91.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 146.99 ms. Allocated memory was 148.9 MB in the beginning and 205.5 MB in the end (delta: 56.6 MB). Free memory was 91.2 MB in the beginning and 182.9 MB in the end (delta: -91.7 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 632.49 ms. Allocated memory is still 205.5 MB. Free memory was 182.9 MB in the beginning and 152.6 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19472.96 ms. Allocated memory was 205.5 MB in the beginning and 460.8 MB in the end (delta: 255.3 MB). Free memory was 152.0 MB in the beginning and 181.1 MB in the end (delta: -29.1 MB). Peak memory consumption was 226.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L15] int m_pc = 0; [L16] int t1_pc = 0; [L17] int m_st ; [L18] int t1_st ; [L19] int m_i ; [L20] int t1_i ; [L21] int M_E = 2; [L22] int T1_E = 2; [L23] int E_1 = 2; [L439] int __retres1 ; [L443] CALL init_model() [L354] m_i = 1 [L355] t1_i = 1 [L443] RET init_model() [L444] CALL start_simulation() [L380] int kernel_st ; [L381] int tmp ; [L382] int tmp___0 ; [L386] kernel_st = 0 [L387] FCALL update_channels() [L388] CALL init_threads() [L151] COND TRUE m_i == 1 [L152] m_st = 0 [L156] COND TRUE t1_i == 1 [L157] t1_st = 0 [L388] RET init_threads() [L389] CALL fire_delta_events() [L240] COND FALSE !(M_E == 0) [L245] COND FALSE !(T1_E == 0) [L250] COND FALSE !(E_1 == 0) [L389] RET fire_delta_events() [L390] CALL activate_threads() [L283] int tmp ; [L284] int tmp___0 ; [L288] CALL, EXPR is_master_triggered() [L102] int __retres1 ; [L105] COND FALSE !(m_pc == 1) [L115] __retres1 = 0 [L117] return (__retres1); [L288] RET, EXPR is_master_triggered() [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) [L296] CALL, EXPR is_transmit1_triggered() [L121] int __retres1 ; [L124] COND FALSE !(t1_pc == 1) [L134] __retres1 = 0 [L136] return (__retres1); [L296] RET, EXPR is_transmit1_triggered() [L296] tmp___0 = is_transmit1_triggered() [L298] COND FALSE !(\read(tmp___0)) [L390] RET activate_threads() [L391] CALL reset_delta_events() [L263] COND FALSE !(M_E == 1) [L268] COND FALSE !(T1_E == 1) [L273] COND FALSE !(E_1 == 1) [L391] RET reset_delta_events() [L394] COND TRUE 1 [L397] kernel_st = 1 [L398] CALL eval() [L187] int tmp ; [L191] COND TRUE 1 [L194] CALL, EXPR exists_runnable_thread() [L166] int __retres1 ; [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 [L182] return (__retres1); [L194] RET, EXPR exists_runnable_thread() [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND FALSE !(\read(tmp_ndt_1)) [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 [L221] CALL transmit1() [L72] COND TRUE t1_pc == 0 [L83] COND TRUE 1 [L85] t1_pc = 1 [L86] t1_st = 2 [L221] RET transmit1() [L191] COND TRUE 1 [L194] CALL, EXPR exists_runnable_thread() [L166] int __retres1 ; [L169] COND TRUE m_st == 0 [L170] __retres1 = 1 [L182] return (__retres1); [L194] RET, EXPR exists_runnable_thread() [L194] tmp = exists_runnable_thread() [L196] COND TRUE \read(tmp) [L201] COND TRUE m_st == 0 [L202] int tmp_ndt_1; [L203] tmp_ndt_1 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp_ndt_1) [L206] m_st = 1 [L207] CALL master() [L31] COND TRUE m_pc == 0 [L42] COND TRUE 1 [L45] E_1 = 1 [L46] CALL immediate_notify() [L312] CALL activate_threads() [L283] int tmp ; [L284] int tmp___0 ; [L288] CALL, EXPR is_master_triggered() [L102] int __retres1 ; [L105] COND FALSE !(m_pc == 1) [L115] __retres1 = 0 [L117] return (__retres1); [L288] RET, EXPR is_master_triggered() [L288] tmp = is_master_triggered() [L290] COND FALSE !(\read(tmp)) [L296] CALL, EXPR is_transmit1_triggered() [L121] int __retres1 ; [L124] COND TRUE t1_pc == 1 [L125] COND TRUE E_1 == 1 [L126] __retres1 = 1 [L136] return (__retres1); [L296] RET, EXPR is_transmit1_triggered() [L296] tmp___0 = is_transmit1_triggered() [L298] COND TRUE \read(tmp___0) [L299] t1_st = 0 [L312] RET activate_threads() [L46] RET immediate_notify() [L47] E_1 = 2 [L50] COND TRUE 1 [L52] m_pc = 1 [L53] m_st = 2 [L207] RET master() [L215] COND TRUE t1_st == 0 [L216] int tmp_ndt_2; [L217] tmp_ndt_2 = __VERIFIER_nondet_int() [L218] COND TRUE \read(tmp_ndt_2) [L220] t1_st = 1 [L221] CALL transmit1() [L72] COND FALSE !(t1_pc == 0) [L75] COND TRUE t1_pc == 1 [L91] CALL error() [L11] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 139 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.3s, OverallIterations: 10, TraceHistogramMax: 2, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1217 SDtfs, 4306 SDslu, 494 SDs, 0 SdLazy, 8255 SolverSat, 2466 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 405 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2130occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 2191 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 932 NumberOfCodeBlocks, 932 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 794 ConstructedInterpolants, 0 QuantifiedInterpolants, 155266 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 89/92 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...