/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 --rcfgbuilder.size.of.a.code.block SingleStatement --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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --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_spec3_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 01:50:32,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 01:50:32,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 01:50:32,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 01:50:32,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 01:50:32,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 01:50:32,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 01:50:32,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 01:50:32,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 01:50:32,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 01:50:32,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 01:50:32,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 01:50:32,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 01:50:32,277 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 01:50:32,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 01:50:32,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 01:50:32,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 01:50:32,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 01:50:32,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 01:50:32,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 01:50:32,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 01:50:32,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 01:50:32,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 01:50:32,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 01:50:32,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 01:50:32,297 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 01:50:32,297 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 01:50:32,298 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 01:50:32,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 01:50:32,300 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 01:50:32,300 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 01:50:32,301 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 01:50:32,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 01:50:32,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 01:50:32,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 01:50:32,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 01:50:32,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 01:50:32,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 01:50:32,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 01:50:32,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 01:50:32,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 01:50:32,309 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 [2020-09-25 01:50:32,337 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 01:50:32,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 01:50:32,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 01:50:32,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 01:50:32,339 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 01:50:32,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 01:50:32,340 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 01:50:32,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 01:50:32,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 01:50:32,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 01:50:32,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 01:50:32,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 01:50:32,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 01:50:32,341 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 01:50:32,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 01:50:32,342 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 01:50:32,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 01:50:32,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 01:50:32,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 01:50:32,343 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 01:50:32,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 01:50:32,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 01:50:32,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 01:50:32,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 01:50:32,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 01:50:32,344 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 01:50:32,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 01:50:32,344 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 01:50:32,345 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 01:50:32,345 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.rcfgbuilder: Size of a code block -> SingleStatement 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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 01:50:32,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 01:50:32,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 01:50:32,874 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 01:50:32,875 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 01:50:32,876 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 01:50:32,877 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2020-09-25 01:50:32,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc3f4651f/6601ef89b22c4e96961f19f17028477a/FLAG1a8088b77 [2020-09-25 01:50:33,584 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 01:50:33,585 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product34.cil.c [2020-09-25 01:50:33,601 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc3f4651f/6601ef89b22c4e96961f19f17028477a/FLAG1a8088b77 [2020-09-25 01:50:33,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cc3f4651f/6601ef89b22c4e96961f19f17028477a [2020-09-25 01:50:33,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 01:50:33,915 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 01:50:33,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 01:50:33,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 01:50:33,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 01:50:33,923 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:50:33" (1/1) ... [2020-09-25 01:50:33,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27a5db49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:33, skipping insertion in model container [2020-09-25 01:50:33,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:50:33" (1/1) ... [2020-09-25 01:50:33,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 01:50:33,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 01:50:34,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:50:34,468 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 01:50:34,560 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 01:50:34,601 INFO L208 MainTranslator]: Completed translation [2020-09-25 01:50:34,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:34 WrapperNode [2020-09-25 01:50:34,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 01:50:34,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 01:50:34,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 01:50:34,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 01:50:34,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:34" (1/1) ... [2020-09-25 01:50:34,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:34" (1/1) ... [2020-09-25 01:50:34,639 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:34" (1/1) ... [2020-09-25 01:50:34,639 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:34" (1/1) ... [2020-09-25 01:50:34,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:34" (1/1) ... [2020-09-25 01:50:34,685 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:34" (1/1) ... [2020-09-25 01:50:34,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:34" (1/1) ... [2020-09-25 01:50:34,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 01:50:34,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 01:50:34,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 01:50:34,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 01:50:34,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:34" (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 [2020-09-25 01:50:34,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 01:50:34,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 01:50:34,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 01:50:34,779 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 01:50:34,779 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 01:50:34,779 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 01:50:34,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 01:50:34,779 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 01:50:34,779 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 01:50:34,780 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 01:50:34,780 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 01:50:34,780 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 01:50:34,780 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 01:50:34,780 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 01:50:34,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 01:50:34,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 01:50:34,781 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 01:50:34,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 01:50:34,781 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 01:50:34,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 01:50:34,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 01:50:34,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 01:50:34,782 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 01:50:34,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 01:50:34,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 01:50:34,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:50:34,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 01:50:34,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 01:50:34,783 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 01:50:34,784 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 01:50:34,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 01:50:34,784 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 01:50:34,784 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 01:50:34,784 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 01:50:34,784 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 01:50:34,785 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 01:50:34,785 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 01:50:34,785 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 01:50:34,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 01:50:34,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 01:50:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 01:50:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 01:50:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 01:50:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 01:50:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 01:50:34,786 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 01:50:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 01:50:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 01:50:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 01:50:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 01:50:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 01:50:34,787 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 01:50:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 01:50:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 01:50:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 01:50:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 01:50:34,788 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 01:50:34,789 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 01:50:34,789 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 01:50:34,789 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 01:50:34,789 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 01:50:34,789 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 01:50:34,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 01:50:34,789 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 01:50:34,790 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 01:50:34,790 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 01:50:34,790 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 01:50:34,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 01:50:34,790 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 01:50:34,790 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 01:50:34,791 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 01:50:34,791 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 01:50:34,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 01:50:34,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 01:50:34,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 01:50:34,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 01:50:34,792 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 01:50:34,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 01:50:34,792 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 01:50:34,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 01:50:34,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 01:50:34,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 01:50:34,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 01:50:34,793 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 01:50:34,793 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 01:50:34,793 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 01:50:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 01:50:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 01:50:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 01:50:34,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 01:50:35,947 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 01:50:35,947 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 01:50:35,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:50:35 BoogieIcfgContainer [2020-09-25 01:50:35,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 01:50:35,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 01:50:35,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 01:50:35,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 01:50:35,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:50:33" (1/3) ... [2020-09-25 01:50:35,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c22dbbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:50:35, skipping insertion in model container [2020-09-25 01:50:35,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:50:34" (2/3) ... [2020-09-25 01:50:35,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c22dbbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:50:35, skipping insertion in model container [2020-09-25 01:50:35,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:50:35" (3/3) ... [2020-09-25 01:50:35,965 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2020-09-25 01:50:35,977 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 01:50:35,988 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 01:50:36,008 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 01:50:36,037 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 01:50:36,037 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 01:50:36,037 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 01:50:36,037 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 01:50:36,038 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 01:50:36,038 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 01:50:36,038 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 01:50:36,038 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 01:50:36,069 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states. [2020-09-25 01:50:36,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 01:50:36,088 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:36,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:50:36,090 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:36,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:36,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1309084967, now seen corresponding path program 1 times [2020-09-25 01:50:36,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:36,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811078033] [2020-09-25 01:50:36,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:36,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:36,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:38,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:41,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:41,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 01:50:41,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:50:41,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 01:50:41,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:41,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:41,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 01:50:41,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:41,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 01:50:41,971 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:41,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:42,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:42,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:42,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:42,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:42,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 01:50:42,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:42,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:42,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:42,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:42,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:42,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:42,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:42,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:42,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:42,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:42,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:42,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:42,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:42,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:42,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:42,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:42,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:42,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:42,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:42,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:42,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:42,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:42,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:42,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:42,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:42,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:42,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:42,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:42,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:42,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:42,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:42,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 01:50:42,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:42,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:42,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:42,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:42,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:42,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:42,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:42,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:42,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:42,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:42,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:42,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:42,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:42,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:42,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 01:50:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:42,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:42,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:42,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:42,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:42,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:42,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:42,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:42,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:42,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:42,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:42,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:50:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:42,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:42,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:42,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:42,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:42,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:42,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:42,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:42,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:42,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:42,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:42,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 01:50:42,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:42,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:42,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:42,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:42,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:42,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:42,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:42,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:42,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:50:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:50:42,271 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811078033] [2020-09-25 01:50:42,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:42,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 01:50:42,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965602011] [2020-09-25 01:50:42,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 01:50:42,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:42,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 01:50:42,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:50:42,304 INFO L87 Difference]: Start difference. First operand 299 states. Second operand 3 states. [2020-09-25 01:50:43,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:43,664 INFO L93 Difference]: Finished difference Result 450 states and 535 transitions. [2020-09-25 01:50:43,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 01:50:43,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 01:50:43,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:43,700 INFO L225 Difference]: With dead ends: 450 [2020-09-25 01:50:43,700 INFO L226 Difference]: Without dead ends: 282 [2020-09-25 01:50:43,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 01:50:43,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-25 01:50:43,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 242. [2020-09-25 01:50:43,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-09-25 01:50:43,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 261 transitions. [2020-09-25 01:50:43,850 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 261 transitions. Word has length 153 [2020-09-25 01:50:43,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:43,851 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 261 transitions. [2020-09-25 01:50:43,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 01:50:43,851 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 261 transitions. [2020-09-25 01:50:43,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 01:50:43,856 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:43,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:50:43,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 01:50:43,857 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:43,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:43,858 INFO L82 PathProgramCache]: Analyzing trace with hash -2119975589, now seen corresponding path program 1 times [2020-09-25 01:50:43,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:43,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [999619966] [2020-09-25 01:50:43,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:43,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:44,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:45,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:48,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:48,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 01:50:48,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 01:50:48,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-09-25 01:50:48,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 01:50:48,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:50:48,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:49,258 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:49,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:49,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:49,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:49,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:49,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:49,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 01:50:49,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:49,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:49,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:49,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:49,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:49,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:49,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:49,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:49,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:49,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:49,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:49,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:49,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:49,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:49,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:49,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:49,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:49,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:49,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:49,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:49,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:49,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:49,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:49,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:49,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:49,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:49,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:49,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:49,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:49,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:49,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:50:49,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:49,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:49,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:49,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:49,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:49,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:49,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:49,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:49,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:49,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:49,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:50:49,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:49,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:49,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 01:50:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:49,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:49,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:49,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:49,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:49,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:49,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:49,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:49,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:49,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 01:50:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:49,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:49,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:49,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:49,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:49,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:49,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:49,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:49,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:49,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:49,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:49,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 01:50:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:49,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:49,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:49,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:49,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:49,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:49,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:49,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:49,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:49,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:49,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:49,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:50:49,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [999619966] [2020-09-25 01:50:49,519 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:49,519 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 01:50:49,520 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202141363] [2020-09-25 01:50:49,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 01:50:49,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:49,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 01:50:49,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 01:50:49,524 INFO L87 Difference]: Start difference. First operand 242 states and 261 transitions. Second operand 4 states. [2020-09-25 01:50:50,178 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:50:51,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:51,115 INFO L93 Difference]: Finished difference Result 363 states and 406 transitions. [2020-09-25 01:50:51,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 01:50:51,116 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 01:50:51,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:51,120 INFO L225 Difference]: With dead ends: 363 [2020-09-25 01:50:51,121 INFO L226 Difference]: Without dead ends: 265 [2020-09-25 01:50:51,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:50:51,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-25 01:50:51,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 232. [2020-09-25 01:50:51,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-09-25 01:50:51,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 248 transitions. [2020-09-25 01:50:51,190 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 248 transitions. Word has length 154 [2020-09-25 01:50:51,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:51,191 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 248 transitions. [2020-09-25 01:50:51,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 01:50:51,191 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 248 transitions. [2020-09-25 01:50:51,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 01:50:51,194 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:51,195 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:50:51,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 01:50:51,195 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:51,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:51,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1523352058, now seen corresponding path program 1 times [2020-09-25 01:50:51,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:51,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635735021] [2020-09-25 01:50:51,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:51,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:51,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:54,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:54,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 01:50:54,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:50:54,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3007 [2020-09-25 01:50:54,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:54,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 01:50:54,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:50:54,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:54,522 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:50:54,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:50:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:54,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:54,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:54,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:50:54,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 01:50:54,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:54,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:54,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:54,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:54,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:54,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:50:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:54,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:54,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:54,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:54,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:54,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:50:54,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:54,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:54,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:54,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:54,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:50:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:54,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:54,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:54,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:54,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:54,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:50:54,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:54,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:54,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:54,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:54,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:54,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:50:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:54,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:54,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:54,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:54,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:54,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:54,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:54,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:54,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:54,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:50:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:54,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:54,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:54,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:50:54,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:54,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:50:54,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:54,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:54,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:54,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:54,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:54,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:50:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:54,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:54,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:54,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:50:54,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:54,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:54,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:54,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:50:54,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:50:54,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 01:50:54,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:54,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 01:50:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:54,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:54,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:54,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:54,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:54,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:50:54,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:54,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:54,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:54,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:54,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:54,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 01:50:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:54,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:54,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:54,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:54,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:54,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:54,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:54,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:54,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:54,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:54,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:54,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 01:50:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:54,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:54,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:50:54,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:50:54,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:50:54,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:50:54,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:50:54,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:50:54,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:50:54,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:50:54,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:50:54,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:50:54,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635735021] [2020-09-25 01:50:54,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:50:54,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 01:50:54,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810538476] [2020-09-25 01:50:54,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 01:50:54,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:50:54,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 01:50:54,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 01:50:54,758 INFO L87 Difference]: Start difference. First operand 232 states and 248 transitions. Second operand 5 states. [2020-09-25 01:50:55,242 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 01:50:56,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:50:56,197 INFO L93 Difference]: Finished difference Result 409 states and 468 transitions. [2020-09-25 01:50:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 01:50:56,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 01:50:56,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:50:56,202 INFO L225 Difference]: With dead ends: 409 [2020-09-25 01:50:56,202 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 01:50:56,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 01:50:56,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 01:50:56,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 232. [2020-09-25 01:50:56,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-09-25 01:50:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 247 transitions. [2020-09-25 01:50:56,238 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 247 transitions. Word has length 167 [2020-09-25 01:50:56,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:50:56,239 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 247 transitions. [2020-09-25 01:50:56,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 01:50:56,239 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 247 transitions. [2020-09-25 01:50:56,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 01:50:56,242 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:50:56,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:50:56,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 01:50:56,243 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:50:56,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:50:56,243 INFO L82 PathProgramCache]: Analyzing trace with hash -927264169, now seen corresponding path program 1 times [2020-09-25 01:50:56,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:50:56,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067169259] [2020-09-25 01:50:56,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:50:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:50:56,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:56,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:57,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:50:58,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 01:51:01,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:51:01,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 01:51:01,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:51:01,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 01:51:01,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:51:01,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,667 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:01,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:01,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:01,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 01:51:01,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:01,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:01,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:51:01,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:01,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:01,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:51:01,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:01,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:01,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:01,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:01,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:01,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:51:01,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:01,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:51:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:51:01,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:01,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:01,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:51:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 01:51:01,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:51:01,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:51:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 01:51:01,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:51:01,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:51:01,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:01,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:01,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:51:01,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 01:51:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:01,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:01,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:01,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 01:51:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:01,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:01,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:01,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-25 01:51:01,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:01,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:01,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:01,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:01,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:01,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:01,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:01,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:01,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:01,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:01,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:01,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:51:01,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067169259] [2020-09-25 01:51:01,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:01,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 01:51:01,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255532382] [2020-09-25 01:51:01,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 01:51:01,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:01,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 01:51:01,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-09-25 01:51:01,979 INFO L87 Difference]: Start difference. First operand 232 states and 247 transitions. Second operand 8 states. [2020-09-25 01:51:02,556 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:51:04,397 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 01:51:05,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:05,186 INFO L93 Difference]: Finished difference Result 602 states and 709 transitions. [2020-09-25 01:51:05,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 01:51:05,187 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 175 [2020-09-25 01:51:05,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:05,192 INFO L225 Difference]: With dead ends: 602 [2020-09-25 01:51:05,192 INFO L226 Difference]: Without dead ends: 480 [2020-09-25 01:51:05,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:51:05,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-25 01:51:05,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 353. [2020-09-25 01:51:05,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-09-25 01:51:05,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 380 transitions. [2020-09-25 01:51:05,253 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 380 transitions. Word has length 175 [2020-09-25 01:51:05,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:05,254 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 380 transitions. [2020-09-25 01:51:05,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 01:51:05,254 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 380 transitions. [2020-09-25 01:51:05,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 01:51:05,257 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:05,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:51:05,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 01:51:05,258 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:05,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:05,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1752390286, now seen corresponding path program 1 times [2020-09-25 01:51:05,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:05,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [348723515] [2020-09-25 01:51:05,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:05,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:05,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:07,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:07,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:10,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:10,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 01:51:10,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 01:51:10,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 01:51:10,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:10,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:51:10,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 170 [2020-09-25 01:51:10,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:51:10,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:10,617 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:10,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:10,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:10,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:10,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:10,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:10,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 01:51:10,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:10,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:10,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:10,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:10,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:10,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:10,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:10,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:10,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:10,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:10,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:10,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:10,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:10,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:10,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:10,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:10,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:10,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:10,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:10,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:10,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:10,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:10,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:10,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:10,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:10,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:10,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:10,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:10,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:10,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:10,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:10,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:10,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:10,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 01:51:10,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:10,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:10,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:10,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:10,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:10,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:10,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:10,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:10,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:10,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:10,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:10,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:10,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:10,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:10,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:10,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:10,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:51:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:10,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:10,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:10,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:51:10,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:10,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:10,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:10,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:10,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:51:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:10,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:10,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:11,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:11,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 01:51:11,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:51:11,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 01:51:11,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:51:11,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 01:51:11,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:51:11,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:11,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:51:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:11,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:11,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:11,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:51:11,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:11,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 01:51:11,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:11,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:51:11,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 01:51:11,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 01:51:11,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:11,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:51:11,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:11,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:11,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:11,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:51:11,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:11,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:51:11,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:11,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 01:51:11,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:11,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:51:11,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:11,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:51:11,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:11,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:11,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:11,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:11,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:11,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:11,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:11,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:11,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 01:51:11,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:11,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:11,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 01:51:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:11,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:11,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:11,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:11,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:11,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:11,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:11,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:11,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:11,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:11,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:11,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 01:51:11,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:11,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:11,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:11,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:11,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:11,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:11,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:11,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:11,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:11,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:11,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:11,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 01:51:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:11,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:11,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:11,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:11,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:11,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:11,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:11,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:11,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:11,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:11,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:51:11,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [348723515] [2020-09-25 01:51:11,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:11,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 01:51:11,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585294017] [2020-09-25 01:51:11,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 01:51:11,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:11,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 01:51:11,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-25 01:51:11,236 INFO L87 Difference]: Start difference. First operand 353 states and 380 transitions. Second operand 9 states. [2020-09-25 01:51:12,430 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:51:12,725 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:51:13,043 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:51:13,399 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 01:51:13,684 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 01:51:14,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 01:51:14,763 INFO L93 Difference]: Finished difference Result 728 states and 854 transitions. [2020-09-25 01:51:14,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 01:51:14,763 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 199 [2020-09-25 01:51:14,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 01:51:14,768 INFO L225 Difference]: With dead ends: 728 [2020-09-25 01:51:14,768 INFO L226 Difference]: Without dead ends: 485 [2020-09-25 01:51:14,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-25 01:51:14,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2020-09-25 01:51:14,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 359. [2020-09-25 01:51:14,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-09-25 01:51:14,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 386 transitions. [2020-09-25 01:51:14,827 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 386 transitions. Word has length 199 [2020-09-25 01:51:14,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 01:51:14,828 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 386 transitions. [2020-09-25 01:51:14,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 01:51:14,828 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 386 transitions. [2020-09-25 01:51:14,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 01:51:14,830 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 01:51:14,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 01:51:14,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 01:51:14,831 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 01:51:14,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 01:51:14,831 INFO L82 PathProgramCache]: Analyzing trace with hash -135374382, now seen corresponding path program 1 times [2020-09-25 01:51:14,831 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 01:51:14,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68918785] [2020-09-25 01:51:14,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 01:51:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:14,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:15,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 01:51:17,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 01:51:17,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2396 [2020-09-25 01:51:17,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 01:51:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 01:51:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 01:51:17,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,608 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 01:51:17,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 01:51:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 01:51:17,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 01:51:17,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:17,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:17,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:17,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 01:51:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:17,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:17,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:17,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:17,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 01:51:17,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 01:51:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:17,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:17,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:17,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:17,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 01:51:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:17,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:17,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:17,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:17,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 01:51:17,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:17,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 01:51:17,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:17,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:17,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:17,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 01:51:17,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 01:51:17,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:17,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:17,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:17,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:17,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 01:51:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 01:51:17,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 01:51:17,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:17,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:17,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 01:51:17,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 01:51:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 01:51:17,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 01:51:17,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:17,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 01:51:17,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 01:51:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 01:51:17,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:51:17,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:17,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:17,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 01:51:17,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 01:51:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 01:51:17,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:17,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:17,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 01:51:17,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-25 01:51:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:17,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 01:51:17,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 01:51:17,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:17,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:51:17,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 01:51:17,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:17,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 01:51:17,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 01:51:17,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 01:51:17,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 01:51:17,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 01:51:17,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 01:51:17,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 01:51:17,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 01:51:17,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 01:51:17,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 01:51:17,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 01:51:17,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 01:51:17,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 01:51:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 01:51:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 01:51:17,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 01:51:17,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 01:51:17,988 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68918785] [2020-09-25 01:51:17,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 01:51:17,990 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 01:51:17,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778513566] [2020-09-25 01:51:17,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 01:51:17,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 01:51:17,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 01:51:17,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 01:51:17,992 INFO L87 Difference]: Start difference. First operand 359 states and 386 transitions. Second operand 11 states. [2020-09-25 01:51:18,534 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186