/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/product-lines/minepump_spec4_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:13:02,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:13:02,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:13:02,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:13:02,146 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:13:02,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:13:02,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:13:02,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:13:02,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:13:02,167 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:13:02,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:13:02,171 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:13:02,171 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:13:02,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:13:02,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:13:02,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:13:02,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:13:02,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:13:02,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:13:02,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:13:02,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:13:02,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:13:02,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:13:02,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:13:02,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:13:02,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:13:02,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:13:02,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:13:02,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:13:02,208 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:13:02,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:13:02,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:13:02,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:13:02,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:13:02,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:13:02,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:13:02,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:13:02,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:13:02,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:13:02,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:13:02,216 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:13:02,217 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 11:13:02,265 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:13:02,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:13:02,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:13:02,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:13:02,268 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:13:02,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:13:02,269 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:13:02,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:13:02,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:13:02,269 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:13:02,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:13:02,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:13:02,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:13:02,271 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:13:02,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:13:02,272 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:13:02,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:13:02,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:13:02,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:13:02,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:13:02,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:13:02,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:13:02,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:13:02,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:13:02,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:13:02,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:13:02,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:13:02,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:13:02,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:13:02,275 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 11:13:02,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:13:02,730 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:13:02,734 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:13:02,736 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:13:02,736 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:13:02,737 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-09-21 11:13:02,819 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf24a9fb3/8bd941afba534baca8a343a99cd3aa5e/FLAG4ab82bbcb [2020-09-21 11:13:03,478 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:13:03,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product41.cil.c [2020-09-21 11:13:03,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf24a9fb3/8bd941afba534baca8a343a99cd3aa5e/FLAG4ab82bbcb [2020-09-21 11:13:03,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bf24a9fb3/8bd941afba534baca8a343a99cd3aa5e [2020-09-21 11:13:03,714 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:13:03,719 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:13:03,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:03,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:13:03,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:13:03,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:03" (1/1) ... [2020-09-21 11:13:03,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:03, skipping insertion in model container [2020-09-21 11:13:03,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:13:03" (1/1) ... [2020-09-21 11:13:03,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:13:03,795 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:13:04,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:04,276 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:13:04,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:13:04,419 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:13:04,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:04 WrapperNode [2020-09-21 11:13:04,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:13:04,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:13:04,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:13:04,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:13:04,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:04" (1/1) ... [2020-09-21 11:13:04,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:04" (1/1) ... [2020-09-21 11:13:04,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:04" (1/1) ... [2020-09-21 11:13:04,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:04" (1/1) ... [2020-09-21 11:13:04,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:04" (1/1) ... [2020-09-21 11:13:04,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:04" (1/1) ... [2020-09-21 11:13:04,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:04" (1/1) ... [2020-09-21 11:13:04,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:13:04,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:13:04,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:13:04,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:13:04,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:04" (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 11:13:04,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:13:04,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:13:04,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:04,594 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:13:04,594 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:13:04,594 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:13:04,594 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:13:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:13:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:13:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 11:13:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:13:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:13:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:13:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:13:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:13:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:13:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:13:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:13:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:13:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:13:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 11:13:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:13:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:13:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:13:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:13:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:13:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:13:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:13:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 11:13:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:13:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:13:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:13:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:13:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:13:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:13:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:13:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:13:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:13:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:13:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:13:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:13:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:13:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:13:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 11:13:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:13:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:13:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:13:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-21 11:13:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:13:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:13:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:13:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:13:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:13:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:13:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:13:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:13:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:13:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:13:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:13:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:13:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:13:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:13:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:13:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:13:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:13:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:13:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:13:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:13:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:13:04,607 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 11:13:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 11:13:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-21 11:13:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:13:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:13:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:13:04,608 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:13:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:13:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:13:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:13:04,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:13:05,669 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:13:05,669 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:13:05,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:05 BoogieIcfgContainer [2020-09-21 11:13:05,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:13:05,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:13:05,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:13:05,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:13:05,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:13:03" (1/3) ... [2020-09-21 11:13:05,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ec11b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:05, skipping insertion in model container [2020-09-21 11:13:05,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:13:04" (2/3) ... [2020-09-21 11:13:05,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33ec11b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:13:05, skipping insertion in model container [2020-09-21 11:13:05,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:13:05" (3/3) ... [2020-09-21 11:13:05,685 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product41.cil.c [2020-09-21 11:13:05,696 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:13:05,706 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:13:05,728 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:13:05,757 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:13:05,757 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:13:05,757 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:13:05,758 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:13:05,758 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:13:05,758 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:13:05,758 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:13:05,758 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:13:05,782 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2020-09-21 11:13:05,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-21 11:13:05,792 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:05,794 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] [2020-09-21 11:13:05,794 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:05,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:05,802 INFO L82 PathProgramCache]: Analyzing trace with hash -219528545, now seen corresponding path program 1 times [2020-09-21 11:13:05,813 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:05,813 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444879085] [2020-09-21 11:13:05,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,134 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,134 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,134 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,135 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-09-21 11:13:06,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:13:06,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:13:06,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:06,571 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:06,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,588 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,588 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,588 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,589 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:06,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:06,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:06,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:06,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,660 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,660 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,661 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:06,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:06,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:06,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:06,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:06,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,667 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,667 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,667 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,668 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:06,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:06,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:06,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:06,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,674 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,675 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,675 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,675 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:06,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:06,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:06,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:06,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,683 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,683 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,683 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,683 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:06,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:06,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:06,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:06,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:06,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,690 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,690 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,690 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,691 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:06,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:06,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:06,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:13:06,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:13:06,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:06,707 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:06,707 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:06,708 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:06,708 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:06,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:06,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:06,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:06,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:06,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:06,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:06,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:06,732 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 11:13:06,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444879085] [2020-09-21 11:13:06,737 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:06,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:13:06,739 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874550829] [2020-09-21 11:13:06,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:13:06,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:06,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:13:06,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:06,767 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 3 states. [2020-09-21 11:13:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:07,823 INFO L93 Difference]: Finished difference Result 281 states and 365 transitions. [2020-09-21 11:13:07,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:13:07,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-09-21 11:13:07,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:07,842 INFO L225 Difference]: With dead ends: 281 [2020-09-21 11:13:07,842 INFO L226 Difference]: Without dead ends: 152 [2020-09-21 11:13:07,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:13:07,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-09-21 11:13:07,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 120. [2020-09-21 11:13:07,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-09-21 11:13:07,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2020-09-21 11:13:07,939 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 46 [2020-09-21 11:13:07,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:07,939 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2020-09-21 11:13:07,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:13:07,940 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2020-09-21 11:13:07,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-09-21 11:13:07,943 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:07,943 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] [2020-09-21 11:13:07,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:13:07,944 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:07,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:07,944 INFO L82 PathProgramCache]: Analyzing trace with hash 207659306, now seen corresponding path program 1 times [2020-09-21 11:13:07,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:07,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239849853] [2020-09-21 11:13:07,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:08,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,014 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,014 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,014 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,015 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-21 11:13:08,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:08,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:13:08,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:08,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,336 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:08,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:08,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,348 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,348 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,348 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,348 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:08,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:08,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,402 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,402 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:08,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:08,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,408 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,408 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,408 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,408 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:08,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:08,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,415 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,415 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,415 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,415 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:08,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:08,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:13:08,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,423 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,424 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,424 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,424 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:08,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:08,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:08,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:13:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,428 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,428 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,428 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,429 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:08,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:08,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:08,436 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:08,436 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:08,436 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:08,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:08,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:08,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:08,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:08,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:08,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:08,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:08,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:08,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:08,450 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 11:13:08,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239849853] [2020-09-21 11:13:08,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:08,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:08,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33021690] [2020-09-21 11:13:08,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:08,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:08,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:08,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:08,460 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 4 states. [2020-09-21 11:13:08,885 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:09,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:09,725 INFO L93 Difference]: Finished difference Result 214 states and 256 transitions. [2020-09-21 11:13:09,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:09,726 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-09-21 11:13:09,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:09,729 INFO L225 Difference]: With dead ends: 214 [2020-09-21 11:13:09,729 INFO L226 Difference]: Without dead ends: 136 [2020-09-21 11:13:09,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:13:09,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-21 11:13:09,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-09-21 11:13:09,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-21 11:13:09,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 127 transitions. [2020-09-21 11:13:09,768 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 127 transitions. Word has length 47 [2020-09-21 11:13:09,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:09,769 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 127 transitions. [2020-09-21 11:13:09,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:09,769 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 127 transitions. [2020-09-21 11:13:09,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-21 11:13:09,771 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:09,771 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] [2020-09-21 11:13:09,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:13:09,771 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:09,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:09,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1269439858, now seen corresponding path program 1 times [2020-09-21 11:13:09,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:09,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [539489380] [2020-09-21 11:13:09,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:09,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:09,909 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:09,910 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:09,910 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:09,910 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:09,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-09-21 11:13:09,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:09,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-21 11:13:09,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:09,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:13:09,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,262 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:10,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,389 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,390 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,390 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:10,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-21 11:13:10,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:10,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:10,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:10,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:10,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:10,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:10,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:10,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:10,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:10,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:10,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,437 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,437 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,437 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:10,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:10,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:10,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:10,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:10,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,443 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,443 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,443 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,443 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:10,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:10,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:10,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:10,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:10,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:10,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,449 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:10,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:10,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:10,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:10,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:13:10,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,456 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,457 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,457 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,457 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:10,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:10,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:10,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:10,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:10,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:13:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:10,462 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:10,462 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:10,462 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:10,463 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:10,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:10,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:10,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:10,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:10,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:10,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:10,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:10,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:10,473 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 11:13:10,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [539489380] [2020-09-21 11:13:10,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:10,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:13:10,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869671940] [2020-09-21 11:13:10,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:13:10,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:10,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:13:10,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:13:10,476 INFO L87 Difference]: Start difference. First operand 111 states and 127 transitions. Second operand 4 states. [2020-09-21 11:13:10,763 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:11,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:11,528 INFO L93 Difference]: Finished difference Result 223 states and 270 transitions. [2020-09-21 11:13:11,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:13:11,528 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-09-21 11:13:11,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:11,532 INFO L225 Difference]: With dead ends: 223 [2020-09-21 11:13:11,532 INFO L226 Difference]: Without dead ends: 136 [2020-09-21 11:13:11,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:13:11,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-09-21 11:13:11,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 111. [2020-09-21 11:13:11,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-21 11:13:11,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 126 transitions. [2020-09-21 11:13:11,565 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 126 transitions. Word has length 51 [2020-09-21 11:13:11,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:11,566 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 126 transitions. [2020-09-21 11:13:11,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:13:11,566 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 126 transitions. [2020-09-21 11:13:11,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-09-21 11:13:11,568 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:11,568 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] [2020-09-21 11:13:11,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:13:11,569 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:11,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:11,569 INFO L82 PathProgramCache]: Analyzing trace with hash 6417079, now seen corresponding path program 1 times [2020-09-21 11:13:11,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:11,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [644757731] [2020-09-21 11:13:11,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:11,997 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:11,997 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:11,998 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:11,998 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:11,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-21 11:13:11,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:11,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-09-21 11:13:11,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:11,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-21 11:13:11,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:11,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-21 11:13:11,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,296 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:12,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,396 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,397 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,397 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,397 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:12,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-21 11:13:12,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:12,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:12,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,431 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,431 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,431 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:12,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:12,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:12,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:12,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:12,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,439 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,439 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:12,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:12,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:12,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,444 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,445 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:12,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:12,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:12,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:12,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,450 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,450 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,450 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,450 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:12,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:12,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:12,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:12,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:13:12,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,466 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,466 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,466 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,466 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:12,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:12,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:12,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:12,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:12,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,519 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,520 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,520 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,520 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:12,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:12,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:12,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:12,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:12,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:13:12,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,525 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,525 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:12,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:12,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:12,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:13:12,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:12,530 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:12,530 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:12,530 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:12,530 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:12,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:12,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:12,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:12,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:12,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:12,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:12,540 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 11:13:12,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [644757731] [2020-09-21 11:13:12,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:12,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:13:12,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804954647] [2020-09-21 11:13:12,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:13:12,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:12,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:13:12,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:13:12,542 INFO L87 Difference]: Start difference. First operand 111 states and 126 transitions. Second operand 7 states. [2020-09-21 11:13:12,908 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:14,232 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 11:13:14,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:14,682 INFO L93 Difference]: Finished difference Result 306 states and 374 transitions. [2020-09-21 11:13:14,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:13:14,684 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2020-09-21 11:13:14,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:14,689 INFO L225 Difference]: With dead ends: 306 [2020-09-21 11:13:14,689 INFO L226 Difference]: Without dead ends: 219 [2020-09-21 11:13:14,690 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:13:14,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2020-09-21 11:13:14,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 178. [2020-09-21 11:13:14,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-09-21 11:13:14,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 203 transitions. [2020-09-21 11:13:14,746 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 203 transitions. Word has length 59 [2020-09-21 11:13:14,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:14,746 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 203 transitions. [2020-09-21 11:13:14,746 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:13:14,747 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 203 transitions. [2020-09-21 11:13:14,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-21 11:13:14,749 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:14,749 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] [2020-09-21 11:13:14,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:13:14,750 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:14,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:14,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1711068188, now seen corresponding path program 1 times [2020-09-21 11:13:14,751 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:14,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1835923757] [2020-09-21 11:13:14,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:14,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:14,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -43 [2020-09-21 11:13:14,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 43 [2020-09-21 11:13:14,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:14,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:13:14,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:14,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:14,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-09-21 11:13:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:14,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:15,102 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:15,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,112 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,112 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,112 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,113 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,114 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,142 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,142 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,143 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,143 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,147 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,147 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,147 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,147 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:15,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,152 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,152 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,152 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:15,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,157 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,157 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,157 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,158 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:13:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,184 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,184 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,184 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,184 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:15,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:15,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:15,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:15,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:15,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,198 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,198 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,199 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,199 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:15,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:15,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:15,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:15,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,228 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,228 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,229 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,229 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:15,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:15,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:15,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:15,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,249 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,249 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:15,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:15,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:13:15,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,255 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,255 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,255 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,256 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:15,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:13:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:15,260 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:15,260 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:15,261 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:15,261 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:15,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:15,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:15,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:15,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:15,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:15,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:15,272 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 11:13:15,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1835923757] [2020-09-21 11:13:15,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:15,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:13:15,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317515968] [2020-09-21 11:13:15,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:13:15,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:15,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:13:15,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:13:15,275 INFO L87 Difference]: Start difference. First operand 178 states and 203 transitions. Second operand 7 states. [2020-09-21 11:13:16,089 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:16,356 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:16,656 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:17,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:17,475 INFO L93 Difference]: Finished difference Result 374 states and 456 transitions. [2020-09-21 11:13:17,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:13:17,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2020-09-21 11:13:17,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:17,480 INFO L225 Difference]: With dead ends: 374 [2020-09-21 11:13:17,481 INFO L226 Difference]: Without dead ends: 220 [2020-09-21 11:13:17,482 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:13:17,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-09-21 11:13:17,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 182. [2020-09-21 11:13:17,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-09-21 11:13:17,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 207 transitions. [2020-09-21 11:13:17,518 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 207 transitions. Word has length 73 [2020-09-21 11:13:17,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:17,519 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 207 transitions. [2020-09-21 11:13:17,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:13:17,520 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 207 transitions. [2020-09-21 11:13:17,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-09-21 11:13:17,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:17,522 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] [2020-09-21 11:13:17,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:13:17,522 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:17,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:17,522 INFO L82 PathProgramCache]: Analyzing trace with hash -212159846, now seen corresponding path program 1 times [2020-09-21 11:13:17,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:17,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297392772] [2020-09-21 11:13:17,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:17,931 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:17,932 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:17,932 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:17,933 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:17,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-21 11:13:17,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:17,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-09-21 11:13:17,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:17,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:17,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-09-21 11:13:17,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,323 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:18,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,403 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-21 11:13:18,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:18,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:18,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,444 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,445 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,445 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,445 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:18,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:18,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,452 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,452 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,453 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:18,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:18,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:18,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,459 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,459 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,459 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,460 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:18,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,467 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,468 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,468 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,468 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:18,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:18,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:13:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,557 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,557 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,558 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,558 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:18,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:18,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:18,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:13:18,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,568 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,568 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,569 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,569 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:18,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,576 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:18,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,584 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,584 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,584 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,585 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:18,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:13:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,593 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,594 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,594 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,594 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:18,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:18,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:18,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:18,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:18,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 11:13:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:18,612 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:18,613 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:18,613 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:18,614 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:18,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:18,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:18,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:18,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:18,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:18,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:18,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:18,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:18,635 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 11:13:18,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297392772] [2020-09-21 11:13:18,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:18,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:18,637 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815504855] [2020-09-21 11:13:18,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:18,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:18,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:18,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:18,638 INFO L87 Difference]: Start difference. First operand 182 states and 207 transitions. Second operand 8 states. [2020-09-21 11:13:19,016 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:20,100 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:20,468 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:20,805 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:21,076 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:21,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:21,956 INFO L93 Difference]: Finished difference Result 493 states and 615 transitions. [2020-09-21 11:13:21,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:21,956 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 73 [2020-09-21 11:13:21,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:21,960 INFO L225 Difference]: With dead ends: 493 [2020-09-21 11:13:21,960 INFO L226 Difference]: Without dead ends: 335 [2020-09-21 11:13:21,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:21,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-21 11:13:22,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 299. [2020-09-21 11:13:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 299 states. [2020-09-21 11:13:22,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 345 transitions. [2020-09-21 11:13:22,021 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 345 transitions. Word has length 73 [2020-09-21 11:13:22,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:22,022 INFO L479 AbstractCegarLoop]: Abstraction has 299 states and 345 transitions. [2020-09-21 11:13:22,022 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:22,022 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 345 transitions. [2020-09-21 11:13:22,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:13:22,024 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:22,024 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:22,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:13:22,025 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:22,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:22,025 INFO L82 PathProgramCache]: Analyzing trace with hash 1945568352, now seen corresponding path program 1 times [2020-09-21 11:13:22,025 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:22,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1741115953] [2020-09-21 11:13:22,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,493 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,494 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,494 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,494 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 11:13:22,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 427 [2020-09-21 11:13:22,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:22,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:22,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-21 11:13:22,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,787 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:22,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,867 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,868 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,868 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,868 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-21 11:13:22,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:22,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:22,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:22,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,910 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,911 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,911 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,911 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:22,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:22,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:22,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:22,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,919 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,919 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:22,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:22,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,926 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,927 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,928 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:22,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:22,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:22,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,936 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,937 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,937 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:22,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:22,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:22,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:22,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,959 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,959 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:22,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:13:22,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:22,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:22,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:22,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:22,991 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:22,991 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:22,991 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:22,991 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:22,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:22,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:22,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:22,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:22,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:22,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:22,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-21 11:13:22,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:23,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,021 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,021 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,021 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,021 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:23,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:23,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:23,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:23,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:23,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:23,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,030 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,030 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,030 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,031 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:23,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:23,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:23,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:23,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:23,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,040 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,040 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,041 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,041 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:23,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:23,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:23,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:23,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:23,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:23,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 11:13:23,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,046 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,046 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,047 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,047 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:23,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:23,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:23,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:23,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:13:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:23,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:23,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:23,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:23,052 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:23,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:23,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:23,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:23,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:23,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:23,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:23,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:23,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:23,067 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 11:13:23,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1741115953] [2020-09-21 11:13:23,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:23,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:23,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248208730] [2020-09-21 11:13:23,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:23,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:23,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:23,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:23,070 INFO L87 Difference]: Start difference. First operand 299 states and 345 transitions. Second operand 9 states. [2020-09-21 11:13:23,591 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:24,321 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:26,115 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:27,116 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-09-21 11:13:28,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:28,322 INFO L93 Difference]: Finished difference Result 728 states and 905 transitions. [2020-09-21 11:13:28,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 11:13:28,322 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-09-21 11:13:28,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:28,327 INFO L225 Difference]: With dead ends: 728 [2020-09-21 11:13:28,327 INFO L226 Difference]: Without dead ends: 559 [2020-09-21 11:13:28,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=131, Invalid=375, Unknown=0, NotChecked=0, Total=506 [2020-09-21 11:13:28,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-09-21 11:13:28,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 514. [2020-09-21 11:13:28,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-09-21 11:13:28,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 611 transitions. [2020-09-21 11:13:28,416 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 611 transitions. Word has length 77 [2020-09-21 11:13:28,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:28,417 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 611 transitions. [2020-09-21 11:13:28,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:28,417 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 611 transitions. [2020-09-21 11:13:28,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:13:28,419 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:28,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:28,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:13:28,419 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:28,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:28,420 INFO L82 PathProgramCache]: Analyzing trace with hash -75370973, now seen corresponding path program 1 times [2020-09-21 11:13:28,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:28,420 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649012893] [2020-09-21 11:13:28,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,470 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:13:28,471 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -53 [2020-09-21 11:13:28,471 FATAL L256 erpolLogProxyWrapper]: Difference in width: 53 [2020-09-21 11:13:28,471 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 11:13:28,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:28,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-21 11:13:28,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:28,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,761 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:28,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:28,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:28,770 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:28,770 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:28,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:28,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:28,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:28,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:28,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,798 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:28,799 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:28,799 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:28,799 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:28,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:28,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:28,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:28,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,803 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:28,803 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:28,803 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:28,803 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:28,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:28,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:28,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:28,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:28,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,808 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:28,808 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:28,808 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:28,808 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:28,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:28,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:28,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:28,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:28,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,812 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:28,813 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:28,813 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:28,813 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:28,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:28,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:28,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:28,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,825 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:28,825 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:28,825 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:28,826 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:28,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:28,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:28,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:28,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:28,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,845 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:28,846 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:28,846 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:28,846 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:28,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:28,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:28,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:28,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,879 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:28,879 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:28,879 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:28,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:28,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:28,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:28,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:28,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,913 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:28,913 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:28,913 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:28,914 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:28,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:28,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:28,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:28,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:28,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:28,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:28,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:28,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:28,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:28,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 11:13:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,922 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:28,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:28,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:28,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:28,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:28,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:28,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:28,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:28,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:13:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:28,926 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:28,927 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:28,927 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:28,927 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:28,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:28,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:28,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:28,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:28,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:28,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:28,938 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 11:13:28,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649012893] [2020-09-21 11:13:28,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:28,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 11:13:28,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755433447] [2020-09-21 11:13:28,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 11:13:28,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:28,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 11:13:28,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-21 11:13:28,940 INFO L87 Difference]: Start difference. First operand 514 states and 611 transitions. Second operand 9 states. [2020-09-21 11:13:29,944 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:30,247 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:30,590 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:30,900 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:32,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:32,002 INFO L93 Difference]: Finished difference Result 940 states and 1154 transitions. [2020-09-21 11:13:32,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:13:32,004 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 77 [2020-09-21 11:13:32,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:32,008 INFO L225 Difference]: With dead ends: 940 [2020-09-21 11:13:32,009 INFO L226 Difference]: Without dead ends: 560 [2020-09-21 11:13:32,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:13:32,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-09-21 11:13:32,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 519. [2020-09-21 11:13:32,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2020-09-21 11:13:32,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 617 transitions. [2020-09-21 11:13:32,164 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 617 transitions. Word has length 77 [2020-09-21 11:13:32,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:32,164 INFO L479 AbstractCegarLoop]: Abstraction has 519 states and 617 transitions. [2020-09-21 11:13:32,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 11:13:32,164 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 617 transitions. [2020-09-21 11:13:32,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-09-21 11:13:32,166 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:32,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:32,166 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:13:32,166 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:32,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:32,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1998599007, now seen corresponding path program 1 times [2020-09-21 11:13:32,167 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:32,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [272287065] [2020-09-21 11:13:32,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,215 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,215 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 11:13:32,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:32,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-21 11:13:32,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:32,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,471 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:32,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,483 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,483 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,483 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,484 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:32,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:32,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:32,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,520 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,521 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,521 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,521 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:32,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,527 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,527 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,527 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,527 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:32,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,532 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,532 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,533 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:32,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,537 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,537 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,538 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,538 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:32,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,555 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,555 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,556 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:32,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:32,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,576 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,576 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,577 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,577 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:13:32,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:32,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-21 11:13:32,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:32,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,602 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,603 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,603 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,603 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,603 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:32,603 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:32,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-21 11:13:32,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:32,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,643 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:32,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:32,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:32,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:32,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:32,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,659 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,659 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,660 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,660 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:32,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-21 11:13:32,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 11:13:32,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,664 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,664 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,665 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,665 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:32,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:32,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 11:13:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:32,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:32,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:32,670 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:32,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:32,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:32,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:32,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:32,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:32,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:32,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:32,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:32,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:32,680 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 11:13:32,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [272287065] [2020-09-21 11:13:32,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:32,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:13:32,682 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840675853] [2020-09-21 11:13:32,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:13:32,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:32,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:13:32,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:13:32,683 INFO L87 Difference]: Start difference. First operand 519 states and 617 transitions. Second operand 8 states. [2020-09-21 11:13:33,678 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:33,930 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:34,228 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:35,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:35,261 INFO L93 Difference]: Finished difference Result 932 states and 1149 transitions. [2020-09-21 11:13:35,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:13:35,262 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2020-09-21 11:13:35,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:35,266 INFO L225 Difference]: With dead ends: 932 [2020-09-21 11:13:35,266 INFO L226 Difference]: Without dead ends: 547 [2020-09-21 11:13:35,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:35,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-09-21 11:13:35,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 511. [2020-09-21 11:13:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 511 states. [2020-09-21 11:13:35,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 606 transitions. [2020-09-21 11:13:35,392 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 606 transitions. Word has length 77 [2020-09-21 11:13:35,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:35,393 INFO L479 AbstractCegarLoop]: Abstraction has 511 states and 606 transitions. [2020-09-21 11:13:35,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:13:35,393 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 606 transitions. [2020-09-21 11:13:35,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-09-21 11:13:35,394 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:35,395 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:35,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:13:35,395 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:35,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:35,395 INFO L82 PathProgramCache]: Analyzing trace with hash 2120025886, now seen corresponding path program 1 times [2020-09-21 11:13:35,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:35,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525182609] [2020-09-21 11:13:35,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:35,877 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:35,877 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:35,877 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:35,877 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:35,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-21 11:13:35,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:35,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 423 [2020-09-21 11:13:35,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:13:35,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:35,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-21 11:13:35,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,163 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:36,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,226 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,227 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,227 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:36,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:13:36,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:13:36,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,261 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,262 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,262 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,262 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:36,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:36,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:36,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,267 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,267 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,267 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,267 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:36,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:36,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:36,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:36,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,273 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,274 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,274 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:36,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:36,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:36,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,279 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,280 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,280 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,280 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:36,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:36,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:36,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,295 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,296 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,296 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,296 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:36,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:36,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:13:36,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,325 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,326 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,326 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,327 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:13:36,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:13:36,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:13:36,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-21 11:13:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:13:36,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,346 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,346 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,347 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:36,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:36,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,352 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,352 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,352 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:36,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,367 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,367 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,367 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,368 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 11:13:36,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:13:36,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-21 11:13:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:13:36,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:36,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:36,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,400 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,401 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,401 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,401 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:13:36,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:36,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:13:36,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,436 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,436 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,437 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:36,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:36,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-21 11:13:36,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:36,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:13:36,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:36,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 11:13:36,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,458 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,458 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,458 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:36,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:36,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:36,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-21 11:13:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:36,463 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:36,463 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:36,463 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:36,463 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:36,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:36,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:36,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:36,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:36,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:36,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:36,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:36,478 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 11:13:36,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525182609] [2020-09-21 11:13:36,479 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:36,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 11:13:36,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39191646] [2020-09-21 11:13:36,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:13:36,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:36,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:13:36,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:36,480 INFO L87 Difference]: Start difference. First operand 511 states and 606 transitions. Second operand 12 states. [2020-09-21 11:13:36,961 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:37,734 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:13:38,558 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:38,938 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:39,289 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:39,586 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:39,940 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:40,283 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:40,633 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:40,950 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:41,323 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:41,697 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 11:13:43,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:43,240 INFO L93 Difference]: Finished difference Result 1414 states and 1770 transitions. [2020-09-21 11:13:43,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-21 11:13:43,241 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-09-21 11:13:43,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:43,247 INFO L225 Difference]: With dead ends: 1414 [2020-09-21 11:13:43,247 INFO L226 Difference]: Without dead ends: 927 [2020-09-21 11:13:43,250 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=188, Invalid=742, Unknown=0, NotChecked=0, Total=930 [2020-09-21 11:13:43,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2020-09-21 11:13:43,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 869. [2020-09-21 11:13:43,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2020-09-21 11:13:43,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1014 transitions. [2020-09-21 11:13:43,435 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1014 transitions. Word has length 89 [2020-09-21 11:13:43,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:43,436 INFO L479 AbstractCegarLoop]: Abstraction has 869 states and 1014 transitions. [2020-09-21 11:13:43,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 11:13:43,436 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1014 transitions. [2020-09-21 11:13:43,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-21 11:13:43,438 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:43,438 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:13:43,438 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:13:43,439 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:43,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:43,439 INFO L82 PathProgramCache]: Analyzing trace with hash -830708606, now seen corresponding path program 1 times [2020-09-21 11:13:43,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:43,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1692950523] [2020-09-21 11:13:43,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,495 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,495 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:13:43,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:13:43,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:43,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:13:43,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-21 11:13:43,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,799 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:43,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:43,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,807 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,807 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,807 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,808 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:43,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:43,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:43,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,836 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,837 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,837 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,837 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:43,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:43,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:43,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:43,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,842 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,842 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,843 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,843 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:43,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:43,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:43,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:43,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,850 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,850 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,850 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,851 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:43,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:43,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:43,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:43,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,856 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,856 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,856 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,856 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:43,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:43,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:43,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:43,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:43,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:43,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:43,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-21 11:13:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,896 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,897 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,897 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,897 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:43,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:43,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:43,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:13:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,921 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,922 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,922 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,922 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-09-21 11:13:43,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:43,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:43,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:43,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:43,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,944 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,944 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,945 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,945 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:43,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:43,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:43,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:43,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,959 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,959 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:43,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:43,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:43,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:43,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:43,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:43,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,971 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,971 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,971 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,971 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-21 11:13:43,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:43,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-21 11:13:43,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,977 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,977 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,977 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,978 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:13:43,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:43,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:43,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:43,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:43,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,985 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,986 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,986 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:43,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:43,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:43,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:43,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:43,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-09-21 11:13:43,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:43,994 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:43,994 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:43,995 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:43,995 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:43,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:43,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:43,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:43,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:43,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:43,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:43,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:43,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:44,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-09-21 11:13:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:44,018 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:44,018 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:44,018 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:44,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:44,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:44,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:44,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:44,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:44,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:44,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:44,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:44,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:44,034 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 11:13:44,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1692950523] [2020-09-21 11:13:44,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:13:44,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-21 11:13:44,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824334119] [2020-09-21 11:13:44,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:13:44,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:44,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:13:44,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:13:44,038 INFO L87 Difference]: Start difference. First operand 869 states and 1014 transitions. Second operand 10 states. [2020-09-21 11:13:45,042 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:45,634 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:46,486 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:46,832 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:47,176 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:48,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:48,634 INFO L93 Difference]: Finished difference Result 1732 states and 2165 transitions. [2020-09-21 11:13:48,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-21 11:13:48,635 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 93 [2020-09-21 11:13:48,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:48,642 INFO L225 Difference]: With dead ends: 1732 [2020-09-21 11:13:48,642 INFO L226 Difference]: Without dead ends: 1077 [2020-09-21 11:13:48,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-09-21 11:13:48,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2020-09-21 11:13:48,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 857. [2020-09-21 11:13:48,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2020-09-21 11:13:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 998 transitions. [2020-09-21 11:13:48,789 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 998 transitions. Word has length 93 [2020-09-21 11:13:48,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:48,790 INFO L479 AbstractCegarLoop]: Abstraction has 857 states and 998 transitions. [2020-09-21 11:13:48,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:13:48,790 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 998 transitions. [2020-09-21 11:13:48,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-21 11:13:48,793 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:48,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:48,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:13:48,794 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:48,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:48,794 INFO L82 PathProgramCache]: Analyzing trace with hash -2062227357, now seen corresponding path program 1 times [2020-09-21 11:13:48,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:48,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1627130316] [2020-09-21 11:13:48,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:48,843 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:48,844 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:48,844 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:48,844 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:48,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-09-21 11:13:48,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:48,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:48,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:48,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:48,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-21 11:13:48,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:48,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,130 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:49,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,139 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,139 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,140 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,166 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,167 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,167 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,167 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:49,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:49,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,170 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,171 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,171 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:49,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:49,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,175 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:49,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,179 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,179 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,180 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,180 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:49,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:49,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:13:49,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,203 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,204 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,204 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,204 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-21 11:13:49,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:49,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-09-21 11:13:49,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:49,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,231 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,232 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,232 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,232 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:49,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:13:49,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-21 11:13:49,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-21 11:13:49,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,297 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:49,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:49,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:49,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:13:49,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:49,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,345 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,345 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,346 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,346 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:49,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,354 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,354 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,355 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,355 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:13:49,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-09-21 11:13:49,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:49,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,363 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,363 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,364 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:13:49,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:49,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,371 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,371 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,372 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,372 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,378 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,379 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,379 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,380 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,389 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,389 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,389 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,390 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:49,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-09-21 11:13:49,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:49,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,395 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,395 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,396 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,396 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:49,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 11:13:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,418 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,418 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,419 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,419 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:49,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-21 11:13:49,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,425 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,426 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,426 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,426 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:49,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-21 11:13:49,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,432 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,433 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,433 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:49,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:49,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-09-21 11:13:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,439 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,439 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,440 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,440 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:49,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-21 11:13:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:49,446 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:49,446 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:49,446 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:49,447 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:49,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:49,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:49,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:49,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:49,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:49,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:49,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:49,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-21 11:13:49,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1627130316] [2020-09-21 11:13:49,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:49,479 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-21 11:13:49,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026827653] [2020-09-21 11:13:49,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-21 11:13:49,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:49,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-21 11:13:49,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:13:49,481 INFO L87 Difference]: Start difference. First operand 857 states and 998 transitions. Second operand 10 states. [2020-09-21 11:13:50,433 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:50,727 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 11:13:51,034 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:51,329 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:52,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:13:52,240 INFO L93 Difference]: Finished difference Result 1588 states and 1883 transitions. [2020-09-21 11:13:52,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:13:52,240 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 124 [2020-09-21 11:13:52,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:13:52,245 INFO L225 Difference]: With dead ends: 1588 [2020-09-21 11:13:52,245 INFO L226 Difference]: Without dead ends: 755 [2020-09-21 11:13:52,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:13:52,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2020-09-21 11:13:52,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 727. [2020-09-21 11:13:52,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2020-09-21 11:13:52,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 843 transitions. [2020-09-21 11:13:52,388 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 843 transitions. Word has length 124 [2020-09-21 11:13:52,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:13:52,388 INFO L479 AbstractCegarLoop]: Abstraction has 727 states and 843 transitions. [2020-09-21 11:13:52,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-21 11:13:52,388 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 843 transitions. [2020-09-21 11:13:52,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-21 11:13:52,391 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:13:52,391 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:52,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:13:52,392 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:13:52,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:13:52,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1980525114, now seen corresponding path program 1 times [2020-09-21 11:13:52,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:13:52,399 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465659119] [2020-09-21 11:13:52,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:13:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:52,486 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:52,487 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:52,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:52,487 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:52,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-09-21 11:13:52,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:52,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:13:52,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:52,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-21 11:13:52,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-21 11:13:52,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-21 11:13:52,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:52,815 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:13:52,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:13:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:52,822 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:52,823 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:52,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:52,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:52,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:52,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:52,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:52,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:52,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:52,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:52,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:52,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:13:52,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:52,852 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:52,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:52,853 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:52,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:52,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:52,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:52,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:52,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:52,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:52,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:52,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:52,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:52,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:13:52,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:52,857 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:52,857 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:52,857 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:52,857 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:52,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:52,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:52,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:52,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:52,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:52,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:52,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:52,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:52,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:52,861 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:52,861 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:52,861 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:52,862 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:52,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:52,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:52,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:52,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:52,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:52,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:52,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:52,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:13:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:52,866 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:52,866 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:52,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:52,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:52,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:52,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:52,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:13:52,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:52,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:52,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:52,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:52,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:52,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 11:13:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:52,880 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:52,880 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:52,880 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:52,880 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:52,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:52,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:52,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:52,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:52,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:52,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:52,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:52,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-21 11:13:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:52,905 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:52,905 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:52,906 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:52,906 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:52,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-21 11:13:52,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:52,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:52,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:52,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:52,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:52,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-21 11:13:52,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:52,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:52,943 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:52,943 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:52,943 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:52,944 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:52,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-21 11:13:52,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:52,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:52,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:52,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:52,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:52,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-21 11:13:52,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:52,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:52,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:52,961 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:52,961 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:52,962 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:52,962 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:52,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-21 11:13:52,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:52,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:52,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:52,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-21 11:13:52,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:52,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:52,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:52,975 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:52,975 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:52,975 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:52,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:52,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:13:52,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:52,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:52,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:52,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:52,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:13:52,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:52,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 11:13:52,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:52,989 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:52,990 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:52,990 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:52,990 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:52,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-09-21 11:13:52,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:52,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:13:52,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:52,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:52,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:13:52,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:53,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:53,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,002 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,003 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,003 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,004 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-21 11:13:53,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:53,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:53,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:53,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,024 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,025 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,025 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,025 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:53,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:13:53,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,031 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,031 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,032 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,032 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:53,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:53,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:53,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-09-21 11:13:53,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,042 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,043 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,043 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,044 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-21 11:13:53,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:13:53,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:53,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 11:13:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,051 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,052 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,052 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,053 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:53,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:53,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-21 11:13:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,068 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,068 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,068 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,069 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:13:53,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-21 11:13:53,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:13:53,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-21 11:13:53,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:53,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-21 11:13:53,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,099 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,100 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,100 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,100 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:13:53,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:13:53,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:13:53,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-21 11:13:53,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:13:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,107 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,107 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,108 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,108 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:13:53,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:53,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:53,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:53,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-09-21 11:13:53,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,116 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,116 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,117 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,117 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:13:53,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:13:53,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:13:53,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:13:53,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:13:53,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-21 11:13:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:13:53,137 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:13:53,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:13:53,138 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:13:53,138 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:13:53,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:13:53,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:13:53,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:13:53,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:13:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:13:53,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:13:53,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:13:53,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:13:53,179 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:13:53,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465659119] [2020-09-21 11:13:53,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:13:53,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-21 11:13:53,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027572714] [2020-09-21 11:13:53,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 11:13:53,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:13:53,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 11:13:53,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:13:53,191 INFO L87 Difference]: Start difference. First operand 727 states and 843 transitions. Second operand 12 states. [2020-09-21 11:13:53,849 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:54,567 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:13:55,309 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:55,653 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:55,975 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:13:56,569 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188