/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_spec1_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:18:51,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:18:51,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:18:51,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:18:51,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:18:51,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:18:51,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:18:51,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:18:51,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:18:51,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:18:51,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:18:51,214 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:18:51,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:18:51,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:18:51,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:18:51,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:18:51,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:18:51,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:18:51,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:18:51,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:18:51,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:18:51,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:18:51,227 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:18:51,228 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:18:51,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:18:51,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:18:51,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:18:51,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:18:51,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:18:51,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:18:51,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:18:51,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:18:51,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:18:51,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:18:51,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:18:51,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:18:51,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:18:51,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:18:51,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:18:51,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:18:51,241 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:18:51,242 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 06:18:51,268 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:18:51,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:18:51,270 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:18:51,270 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:18:51,270 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:18:51,271 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:18:51,271 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:18:51,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:18:51,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:18:51,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:18:51,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:18:51,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:18:51,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:18:51,272 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:18:51,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:18:51,272 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:18:51,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:18:51,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:18:51,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:18:51,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:18:51,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:18:51,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:18:51,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:18:51,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:18:51,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:18:51,275 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:18:51,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:18:51,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:18:51,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:18:51,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:18:51,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:18:51,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:18:51,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:18:51,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:18:51,782 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:18:51,783 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c [2020-09-25 06:18:51,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6030fff84/d482091367ab49f4968818633910b595/FLAG7ab6f4df1 [2020-09-25 06:18:52,458 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:18:52,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c [2020-09-25 06:18:52,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6030fff84/d482091367ab49f4968818633910b595/FLAG7ab6f4df1 [2020-09-25 06:18:52,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6030fff84/d482091367ab49f4968818633910b595 [2020-09-25 06:18:52,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:18:52,760 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:18:52,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:18:52,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:18:52,766 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:18:52,767 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:18:52" (1/1) ... [2020-09-25 06:18:52,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a098cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:52, skipping insertion in model container [2020-09-25 06:18:52,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:18:52" (1/1) ... [2020-09-25 06:18:52,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:18:52,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:18:53,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:18:53,235 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:18:53,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:18:53,463 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:18:53,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:53 WrapperNode [2020-09-25 06:18:53,464 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:18:53,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:18:53,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:18:53,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:18:53,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:53" (1/1) ... [2020-09-25 06:18:53,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:53" (1/1) ... [2020-09-25 06:18:53,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:53" (1/1) ... [2020-09-25 06:18:53,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:53" (1/1) ... [2020-09-25 06:18:53,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:53" (1/1) ... [2020-09-25 06:18:53,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:53" (1/1) ... [2020-09-25 06:18:53,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:53" (1/1) ... [2020-09-25 06:18:53,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:18:53,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:18:53,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:18:53,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:18:53,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:53" (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 06:18:53,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:18:53,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:18:53,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:18:53,647 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:18:53,647 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:18:53,647 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:18:53,647 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:18:53,647 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:18:53,647 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:18:53,648 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:18:53,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:18:53,648 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:18:53,648 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:18:53,648 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:18:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:18:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:18:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 06:18:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:18:53,649 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:18:53,650 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:18:53,651 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:18:53,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:18:53,652 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:18:53,652 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:18:53,652 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:18:53,654 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:18:53,654 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:18:53,654 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:18:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:18:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:18:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:18:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:18:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:18:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:18:53,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:18:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:18:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:18:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:18:53,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:18:53,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:18:53,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:18:53,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:18:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:18:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:18:53,659 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:18:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:18:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:18:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:18:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:18:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:18:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:18:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:18:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:18:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:18:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:18:53,662 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:18:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:18:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:18:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:18:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:18:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 06:18:53,663 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:18:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:18:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:18:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:18:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:18:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:18:53,664 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:18:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:18:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:18:53,665 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:18:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:18:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:18:53,667 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:18:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 06:18:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:18:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 06:18:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:18:53,668 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 06:18:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:18:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:18:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:18:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:18:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:18:53,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:18:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:18:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:18:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:18:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:18:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:18:53,670 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:18:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:18:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:18:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:18:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:18:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:18:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:18:53,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:18:54,861 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:18:54,862 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:18:54,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:18:54 BoogieIcfgContainer [2020-09-25 06:18:54,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:18:54,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:18:54,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:18:54,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:18:54,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:18:52" (1/3) ... [2020-09-25 06:18:54,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32487d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:18:54, skipping insertion in model container [2020-09-25 06:18:54,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:18:53" (2/3) ... [2020-09-25 06:18:54,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32487d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:18:54, skipping insertion in model container [2020-09-25 06:18:54,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:18:54" (3/3) ... [2020-09-25 06:18:54,884 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2020-09-25 06:18:54,896 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:18:54,907 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:18:54,929 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:18:54,958 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:18:54,958 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:18:54,958 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:18:54,959 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:18:54,959 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:18:54,959 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:18:54,959 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:18:54,959 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:18:54,989 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states. [2020-09-25 06:18:55,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 06:18:55,009 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:18:55,010 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] [2020-09-25 06:18:55,011 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:18:55,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:18:55,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1532916738, now seen corresponding path program 1 times [2020-09-25 06:18:55,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:18:55,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829935713] [2020-09-25 06:18:55,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:18:55,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:18:55,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:55,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:56,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:57,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:18:57,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:00,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:00,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 06:19:00,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:19:00,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 06:19:00,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:00,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:00,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:00,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:19:00,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:00,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:19:00,770 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:19:00,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:00,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:00,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:00,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:19:00,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:00,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 06:19:00,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:00,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:00,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:00,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:00,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:00,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:19:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:00,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:00,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:00,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:00,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:00,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:00,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:00,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:00,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:00,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:19:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:00,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:00,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:00,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:00,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:00,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:00,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:00,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:00,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:00,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:00,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:00,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:19:00,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:00,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:00,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:00,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:00,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:00,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:19:00,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:00,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:00,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:00,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:00,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:00,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:19:01,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:01,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:01,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:01,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:01,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:01,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:01,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:01,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:01,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:01,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:01,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:19:01,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:19:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:01,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:01,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:01,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:01,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:01,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:01,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:01,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:01,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:01,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:01,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 06:19:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:01,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:01,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:01,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:01,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:01,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:01,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:01,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:01,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:01,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:01,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:01,054 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 06:19:01,055 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829935713] [2020-09-25 06:19:01,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:01,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:19:01,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10420356] [2020-09-25 06:19:01,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:19:01,066 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:01,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:19:01,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:19:01,091 INFO L87 Difference]: Start difference. First operand 341 states. Second operand 3 states. [2020-09-25 06:19:02,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:02,908 INFO L93 Difference]: Finished difference Result 551 states and 657 transitions. [2020-09-25 06:19:02,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:19:02,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 06:19:02,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:02,945 INFO L225 Difference]: With dead ends: 551 [2020-09-25 06:19:02,945 INFO L226 Difference]: Without dead ends: 335 [2020-09-25 06:19:02,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:19:02,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-25 06:19:03,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 290. [2020-09-25 06:19:03,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-25 06:19:03,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 319 transitions. [2020-09-25 06:19:03,093 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 319 transitions. Word has length 142 [2020-09-25 06:19:03,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:03,098 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 319 transitions. [2020-09-25 06:19:03,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:19:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 319 transitions. [2020-09-25 06:19:03,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 06:19:03,108 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:03,108 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] [2020-09-25 06:19:03,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:19:03,113 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:03,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:03,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1032318014, now seen corresponding path program 1 times [2020-09-25 06:19:03,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:03,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325817037] [2020-09-25 06:19:03,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:03,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:03,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:03,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:04,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:04,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:08,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:08,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 06:19:08,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:19:08,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 06:19:08,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:08,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 06:19:08,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 06:19:08,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:08,539 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:19:08,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:08,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:08,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:08,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:19:08,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:08,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-25 06:19:08,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:08,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:08,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 06:19:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:08,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:19:08,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:08,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:08,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:08,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:08,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:08,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:08,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:08,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:08,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:08,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:08,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:08,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:19:08,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:08,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:08,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:08,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:08,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:08,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:08,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:08,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:08,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:08,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:08,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:08,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:08,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:19:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:08,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:08,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:08,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:08,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:08,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:19:08,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:08,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:08,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:08,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:08,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:19:08,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:08,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:19:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:08,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:08,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:08,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:08,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:08,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:19:08,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:08,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:08,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:08,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:08,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 06:19:08,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:19:08,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:08,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:08,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:08,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:08,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:08,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:08,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:08,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:08,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:08,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:08,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:19:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:08,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:08,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:08,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:08,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:08,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:08,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:08,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:08,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:08,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:08,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:08,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:19:08,972 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 06:19:08,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325817037] [2020-09-25 06:19:08,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:08,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:19:08,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609658751] [2020-09-25 06:19:08,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:19:08,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:08,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:19:08,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:19:08,977 INFO L87 Difference]: Start difference. First operand 290 states and 319 transitions. Second operand 4 states. [2020-09-25 06:19:09,449 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:19:10,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:10,625 INFO L93 Difference]: Finished difference Result 515 states and 598 transitions. [2020-09-25 06:19:10,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:19:10,626 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 06:19:10,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:10,630 INFO L225 Difference]: With dead ends: 515 [2020-09-25 06:19:10,630 INFO L226 Difference]: Without dead ends: 335 [2020-09-25 06:19:10,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 06:19:10,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2020-09-25 06:19:10,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 290. [2020-09-25 06:19:10,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-09-25 06:19:10,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 318 transitions. [2020-09-25 06:19:10,709 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 318 transitions. Word has length 143 [2020-09-25 06:19:10,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:10,712 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 318 transitions. [2020-09-25 06:19:10,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:19:10,712 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 318 transitions. [2020-09-25 06:19:10,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:19:10,714 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:10,715 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] [2020-09-25 06:19:10,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:19:10,715 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:10,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:10,716 INFO L82 PathProgramCache]: Analyzing trace with hash 1186546234, now seen corresponding path program 1 times [2020-09-25 06:19:10,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:10,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808527769] [2020-09-25 06:19:10,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:10,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:10,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:11,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:11,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:11,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:15,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:15,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:19:15,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:19:15,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 06:19:15,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:15,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:15,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:15,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:19:15,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:19:15,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:16,132 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:19:16,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:16,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:16,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:19:16,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:16,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 06:19:16,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:16,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:16,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:16,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:19:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:16,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:16,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:16,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:16,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:16,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:16,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:16,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:16,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:19:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:16,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:16,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:16,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:16,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:16,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:16,279 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:16,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:16,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:16,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:16,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:16,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:19:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:16,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:16,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:16,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:16,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:16,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:16,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:16,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:16,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:16,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:16,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:16,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:19:16,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:16,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:16,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:16,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:16,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:16,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:16,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:16,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:16,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:16,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:16,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:16,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 06:19:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:16,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:16,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:19:16,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:19:16,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 06:19:16,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:16,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:16,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:16,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-09-25 06:19:16,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:16,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:16,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:16,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:16,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:19:16,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:19:16,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 06:19:16,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:16,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:16,354 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:16,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:16,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:16,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:16,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:19:16,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:16,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:16,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:16,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:16,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:16,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:16,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:16,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:16,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:16,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:16,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:16,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:16,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:16,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:16,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:16,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:16,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:16,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:16,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 06:19:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:16,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:16,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:16,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:16,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:16,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:16,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:16,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:16,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:16,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 06:19:16,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:16,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:16,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:16,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:16,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:16,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:16,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:16,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:16,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:16,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:16,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:16,413 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 06:19:16,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808527769] [2020-09-25 06:19:16,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:16,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:19:16,414 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159661754] [2020-09-25 06:19:16,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:19:16,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:16,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:19:16,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:19:16,416 INFO L87 Difference]: Start difference. First operand 290 states and 318 transitions. Second operand 5 states. [2020-09-25 06:19:17,015 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:18,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:18,448 INFO L93 Difference]: Finished difference Result 492 states and 566 transitions. [2020-09-25 06:19:18,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:19:18,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 06:19:18,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:18,452 INFO L225 Difference]: With dead ends: 492 [2020-09-25 06:19:18,452 INFO L226 Difference]: Without dead ends: 342 [2020-09-25 06:19:18,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:19:18,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-25 06:19:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 280. [2020-09-25 06:19:18,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-09-25 06:19:18,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 305 transitions. [2020-09-25 06:19:18,507 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 305 transitions. Word has length 161 [2020-09-25 06:19:18,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:18,508 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 305 transitions. [2020-09-25 06:19:18,508 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:19:18,508 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 305 transitions. [2020-09-25 06:19:18,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-09-25 06:19:18,511 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:18,511 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] [2020-09-25 06:19:18,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:19:18,511 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:18,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:18,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1222289511, now seen corresponding path program 1 times [2020-09-25 06:19:18,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:18,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [37951985] [2020-09-25 06:19:18,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:18,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:18,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:18,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:19,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:21,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:22,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:22,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:22,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:23,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:23,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 06:19:23,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 06:19:23,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-09-25 06:19:23,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:23,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:23,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:19:23,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-09-25 06:19:23,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:19:23,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:23,916 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:19:23,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:23,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:24,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:19:24,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:24,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 06:19:24,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:24,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:24,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:24,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:24,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:24,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:24,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:19:24,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:24,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:24,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:24,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:24,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:24,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:24,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:24,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:24,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:24,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:24,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:24,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:19:24,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:24,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:24,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:24,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:24,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:24,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:24,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:24,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:24,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:24,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:24,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:19:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:24,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:24,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:24,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:24,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:24,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:24,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:24,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:24,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:24,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:24,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:24,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:19:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:24,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:24,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:24,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:24,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:24,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:24,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:24,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:24,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:24,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:24,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:24,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:19:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:24,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:24,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 06:19:24,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:19:24,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:19:24,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:24,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:24,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:19:24,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 06:19:24,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 06:19:24,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:24,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:24,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:24,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 06:19:24,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:19:24,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:19:24,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:24,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:24,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:19:24,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:19:24,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 06:19:24,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:24,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:24,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:24,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:19:24,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:24,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:19:24,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:24,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:24,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:19:24,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:19:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:19:24,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:24,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:24,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:24,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:24,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:24,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:24,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:24,277 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:24,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:24,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:24,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:24,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:19:24,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:19:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:24,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:24,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:24,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:24,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:24,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:24,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:24,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:24,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:24,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:24,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:24,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-25 06:19:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:24,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:24,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:24,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:24,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:24,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:19:24,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:24,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:24,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:24,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:24,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:24,367 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 06:19:24,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [37951985] [2020-09-25 06:19:24,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:24,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 06:19:24,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121134870] [2020-09-25 06:19:24,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 06:19:24,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:24,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 06:19:24,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:19:24,372 INFO L87 Difference]: Start difference. First operand 280 states and 305 transitions. Second operand 7 states. [2020-09-25 06:19:24,885 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:19:26,455 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:27,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:27,566 INFO L93 Difference]: Finished difference Result 633 states and 727 transitions. [2020-09-25 06:19:27,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 06:19:27,566 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-09-25 06:19:27,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:27,571 INFO L225 Difference]: With dead ends: 633 [2020-09-25 06:19:27,571 INFO L226 Difference]: Without dead ends: 463 [2020-09-25 06:19:27,572 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-09-25 06:19:27,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-09-25 06:19:27,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 404. [2020-09-25 06:19:27,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-09-25 06:19:27,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 436 transitions. [2020-09-25 06:19:27,619 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 436 transitions. Word has length 170 [2020-09-25 06:19:27,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:27,620 INFO L479 AbstractCegarLoop]: Abstraction has 404 states and 436 transitions. [2020-09-25 06:19:27,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 06:19:27,620 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 436 transitions. [2020-09-25 06:19:27,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 06:19:27,623 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:27,623 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] [2020-09-25 06:19:27,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:19:27,623 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:27,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:27,624 INFO L82 PathProgramCache]: Analyzing trace with hash -2133528466, now seen corresponding path program 1 times [2020-09-25 06:19:27,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:27,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256066563] [2020-09-25 06:19:27,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:27,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:27,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:28,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:28,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:28,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:28,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:32,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:32,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-09-25 06:19:32,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:19:32,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5030 [2020-09-25 06:19:32,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:32,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:32,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:19:32,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 06:19:32,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 06:19:32,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:33,065 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:19:33,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:19:33,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:33,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 06:19:33,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:33,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:33,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:33,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:19:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:33,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:33,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:33,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:33,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:33,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:33,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:19:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:33,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:33,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:33,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:33,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:33,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:33,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:19:33,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:33,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:33,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:33,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:33,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:33,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:19:33,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:33,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:33,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:33,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:33,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:33,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:33,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 06:19:33,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-09-25 06:19:33,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:19:33,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 06:19:33,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:33,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 06:19:33,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:33,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-09-25 06:19:33,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:19:33,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 06:19:33,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:33,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:19:33,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:33,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:19:33,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:33,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 06:19:33,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:19:33,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:33,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:19:33,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:19:33,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:33,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 06:19:33,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:19:33,564 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:33,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:19:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:19:33,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:33,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:19:33,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:33,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:33,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:33,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:19:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:33,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:33,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:33,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:33,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:19:33,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:33,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-25 06:19:33,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:33,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:33,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:33,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:33,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:19:33,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:19:33,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 06:19:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:33,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:33,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:33,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:33,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:33,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 06:19:33,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:33,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:33,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:19:33,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:33,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:19:33,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:33,697 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 06:19:33,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1256066563] [2020-09-25 06:19:33,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:33,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:19:33,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190035449] [2020-09-25 06:19:33,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:19:33,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:33,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:19:33,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:19:33,699 INFO L87 Difference]: Start difference. First operand 404 states and 436 transitions. Second operand 9 states. [2020-09-25 06:19:34,182 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:35,905 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:19:36,204 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:19:36,521 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:19:37,707 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:19:38,092 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:19:38,452 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:19:38,817 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 06:19:39,140 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:19:39,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:39,401 INFO L93 Difference]: Finished difference Result 466 states and 520 transitions. [2020-09-25 06:19:39,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:19:39,402 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 194 [2020-09-25 06:19:39,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:39,407 INFO L225 Difference]: With dead ends: 466 [2020-09-25 06:19:39,408 INFO L226 Difference]: Without dead ends: 463 [2020-09-25 06:19:39,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 06:19:39,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2020-09-25 06:19:39,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 404. [2020-09-25 06:19:39,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 404 states. [2020-09-25 06:19:39,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 435 transitions. [2020-09-25 06:19:39,460 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 435 transitions. Word has length 194 [2020-09-25 06:19:39,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:39,461 INFO L479 AbstractCegarLoop]: Abstraction has 404 states and 435 transitions. [2020-09-25 06:19:39,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:19:39,461 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 435 transitions. [2020-09-25 06:19:39,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 06:19:39,464 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:39,465 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:19:39,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:19:39,465 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:39,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:39,466 INFO L82 PathProgramCache]: Analyzing trace with hash -741417358, now seen corresponding path program 1 times [2020-09-25 06:19:39,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:39,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612269200] [2020-09-25 06:19:39,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:39,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:39,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:40,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking...