/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 19:08:43,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 19:08:43,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 19:08:43,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 19:08:43,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 19:08:43,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 19:08:43,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 19:08:43,971 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 19:08:43,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 19:08:43,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 19:08:43,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 19:08:43,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 19:08:43,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 19:08:43,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 19:08:43,986 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 19:08:43,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 19:08:43,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 19:08:43,990 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 19:08:43,992 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 19:08:44,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 19:08:44,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 19:08:44,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 19:08:44,007 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 19:08:44,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 19:08:44,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 19:08:44,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 19:08:44,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 19:08:44,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 19:08:44,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 19:08:44,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 19:08:44,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 19:08:44,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 19:08:44,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 19:08:44,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 19:08:44,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 19:08:44,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 19:08:44,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 19:08:44,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 19:08:44,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 19:08:44,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 19:08:44,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 19:08:44,024 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 [2020-09-24 19:08:44,074 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 19:08:44,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 19:08:44,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 19:08:44,077 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 19:08:44,078 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 19:08:44,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 19:08:44,078 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 19:08:44,078 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 19:08:44,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 19:08:44,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 19:08:44,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 19:08:44,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 19:08:44,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 19:08:44,081 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 19:08:44,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 19:08:44,081 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 19:08:44,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 19:08:44,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 19:08:44,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 19:08:44,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 19:08:44,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 19:08:44,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 19:08:44,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 19:08:44,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 19:08:44,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 19:08:44,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 19:08:44,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 19:08:44,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 19:08:44,084 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 19:08:44,084 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 19:08:44,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 19:08:44,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 19:08:44,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 19:08:44,563 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 19:08:44,563 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 19:08:44,564 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c [2020-09-24 19:08:44,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbe9e8ad8/294346b7ffc94cf69082a5d0ee3e52a2/FLAGa2ffd2d9e [2020-09-24 19:08:45,291 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 19:08:45,292 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c [2020-09-24 19:08:45,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbe9e8ad8/294346b7ffc94cf69082a5d0ee3e52a2/FLAGa2ffd2d9e [2020-09-24 19:08:45,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbe9e8ad8/294346b7ffc94cf69082a5d0ee3e52a2 [2020-09-24 19:08:45,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 19:08:45,515 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 19:08:45,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 19:08:45,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 19:08:45,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 19:08:45,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:08:45" (1/1) ... [2020-09-24 19:08:45,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5db1276a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:45, skipping insertion in model container [2020-09-24 19:08:45,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 07:08:45" (1/1) ... [2020-09-24 19:08:45,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 19:08:45,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 19:08:46,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:08:46,072 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 19:08:46,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 19:08:46,232 INFO L208 MainTranslator]: Completed translation [2020-09-24 19:08:46,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:46 WrapperNode [2020-09-24 19:08:46,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 19:08:46,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 19:08:46,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 19:08:46,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 19:08:46,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:46" (1/1) ... [2020-09-24 19:08:46,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:46" (1/1) ... [2020-09-24 19:08:46,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:46" (1/1) ... [2020-09-24 19:08:46,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:46" (1/1) ... [2020-09-24 19:08:46,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:46" (1/1) ... [2020-09-24 19:08:46,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:46" (1/1) ... [2020-09-24 19:08:46,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:46" (1/1) ... [2020-09-24 19:08:46,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 19:08:46,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 19:08:46,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 19:08:46,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 19:08:46,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:46" (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 [2020-09-24 19:08:46,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 19:08:46,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 19:08:46,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 19:08:46,444 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 19:08:46,444 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 19:08:46,444 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 19:08:46,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 19:08:46,444 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 19:08:46,445 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 19:08:46,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-24 19:08:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 19:08:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 19:08:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 19:08:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 19:08:46,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 19:08:46,447 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 19:08:46,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 19:08:46,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 19:08:46,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 19:08:46,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 19:08:46,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 19:08:46,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 19:08:46,449 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 19:08:46,449 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 19:08:46,449 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 19:08:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 19:08:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 19:08:46,450 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 19:08:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 19:08:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 19:08:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 19:08:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-24 19:08:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:08:46,451 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 19:08:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 19:08:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 19:08:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 19:08:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 19:08:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 19:08:46,452 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 19:08:46,454 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 19:08:46,454 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 19:08:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 19:08:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 19:08:46,455 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 19:08:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 19:08:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-24 19:08:46,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 19:08:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 19:08:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 19:08:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 19:08:46,457 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 19:08:46,458 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 19:08:46,458 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 19:08:46,458 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 19:08:46,458 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 19:08:46,458 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 19:08:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 19:08:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 19:08:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 19:08:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 19:08:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 19:08:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 19:08:46,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 19:08:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 19:08:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 19:08:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 19:08:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 19:08:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 19:08:46,460 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 19:08:46,461 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 19:08:46,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 19:08:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 19:08:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 19:08:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 19:08:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 19:08:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 19:08:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 19:08:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 19:08:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 19:08:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 19:08:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 19:08:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-24 19:08:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 19:08:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 19:08:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 19:08:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 19:08:46,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 19:08:47,559 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 19:08:47,560 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 19:08:47,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:08:47 BoogieIcfgContainer [2020-09-24 19:08:47,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 19:08:47,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 19:08:47,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 19:08:47,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 19:08:47,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 07:08:45" (1/3) ... [2020-09-24 19:08:47,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cf9ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:08:47, skipping insertion in model container [2020-09-24 19:08:47,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 07:08:46" (2/3) ... [2020-09-24 19:08:47,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13cf9ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 07:08:47, skipping insertion in model container [2020-09-24 19:08:47,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 07:08:47" (3/3) ... [2020-09-24 19:08:47,585 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2020-09-24 19:08:47,595 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 19:08:47,605 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 19:08:47,627 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 19:08:47,655 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 19:08:47,655 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 19:08:47,656 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 19:08:47,656 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 19:08:47,656 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 19:08:47,656 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 19:08:47,656 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 19:08:47,656 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 19:08:47,684 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-24 19:08:47,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 19:08:47,704 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:47,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:08:47,706 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:47,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:47,714 INFO L82 PathProgramCache]: Analyzing trace with hash 843539400, now seen corresponding path program 1 times [2020-09-24 19:08:47,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:47,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [553065990] [2020-09-24 19:08:47,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:48,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:48,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:49,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:49,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:49,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 19:08:49,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:08:49,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1112 [2020-09-24 19:08:49,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:49,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:49,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 19:08:49,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:49,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 19:08:49,624 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:49,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:49,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:49,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:49,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:49,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:49,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:49,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-24 19:08:49,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:49,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:49,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:49,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:49,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:08:49,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:49,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:49,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:49,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:49,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:49,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:49,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:49,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:49,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:49,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:49,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:49,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:49,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:49,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:49,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:49,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:49,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:49,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:49,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:49,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:49,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:49,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:49,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:49,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:49,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:49,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:49,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:49,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:08:49,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:49,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:49,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:49,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:49,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:49,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:49,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:49,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:49,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:49,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:49,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:49,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:50,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 57 [2020-09-24 19:08:50,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 19:08:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:50,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:50,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:50,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:50,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:50,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:50,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:50,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:50,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:50,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 19:08:50,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:50,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:50,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:50,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:50,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:50,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:08:50,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:50,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:50,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:50,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:50,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:50,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 19:08:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:50,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:50,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:50,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:50,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:50,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:08:50,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:50,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:50,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:50,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:50,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:08:50,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:50,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [553065990] [2020-09-24 19:08:50,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:50,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 19:08:50,147 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810455693] [2020-09-24 19:08:50,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 19:08:50,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:50,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 19:08:50,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:08:50,192 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 3 states. [2020-09-24 19:08:51,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:51,506 INFO L93 Difference]: Finished difference Result 441 states and 525 transitions. [2020-09-24 19:08:51,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 19:08:51,508 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 19:08:51,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:51,528 INFO L225 Difference]: With dead ends: 441 [2020-09-24 19:08:51,529 INFO L226 Difference]: Without dead ends: 277 [2020-09-24 19:08:51,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 19:08:51,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-24 19:08:51,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 238. [2020-09-24 19:08:51,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-24 19:08:51,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 257 transitions. [2020-09-24 19:08:51,673 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 257 transitions. Word has length 153 [2020-09-24 19:08:51,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:51,674 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 257 transitions. [2020-09-24 19:08:51,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 19:08:51,674 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 257 transitions. [2020-09-24 19:08:51,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 19:08:51,683 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:51,683 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:08:51,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 19:08:51,684 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:51,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:51,684 INFO L82 PathProgramCache]: Analyzing trace with hash -457138142, now seen corresponding path program 1 times [2020-09-24 19:08:51,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:51,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464491367] [2020-09-24 19:08:51,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:51,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:51,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:52,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:52,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:52,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:52,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 19:08:52,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:08:52,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-24 19:08:52,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:52,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:52,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-24 19:08:52,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-24 19:08:52,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:53,116 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:53,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:53,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:53,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:53,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:53,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:53,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-09-24 19:08:53,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:53,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:53,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:53,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-24 19:08:53,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:53,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:53,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:53,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:53,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:53,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:53,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:53,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:53,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:53,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:53,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:53,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:53,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:53,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:53,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:53,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:53,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:53,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:53,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:53,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:53,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:53,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:53,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:53,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:53,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:53,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:53,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:53,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:53,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:08:53,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:53,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:53,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:53,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:53,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:53,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:53,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:53,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:53,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:53,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:53,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:53,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:53,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:53,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:53,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:53,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:08:53,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:53,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 19:08:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:53,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:53,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:53,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:53,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:53,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:53,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:53,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:53,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:53,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:53,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:53,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:08:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:53,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:53,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:53,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:53,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:53,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:53,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:53,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:53,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:53,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:53,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:53,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 19:08:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:53,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:53,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:53,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:53,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:53,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:53,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:53,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:53,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:53,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:53,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:53,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:53,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464491367] [2020-09-24 19:08:53,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:53,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 19:08:53,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943940745] [2020-09-24 19:08:53,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 19:08:53,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:53,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 19:08:53,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 19:08:53,617 INFO L87 Difference]: Start difference. First operand 238 states and 257 transitions. Second operand 4 states. [2020-09-24 19:08:54,196 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:08:55,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:55,173 INFO L93 Difference]: Finished difference Result 405 states and 466 transitions. [2020-09-24 19:08:55,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 19:08:55,174 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 19:08:55,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:55,179 INFO L225 Difference]: With dead ends: 405 [2020-09-24 19:08:55,179 INFO L226 Difference]: Without dead ends: 277 [2020-09-24 19:08:55,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:08:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-24 19:08:55,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 238. [2020-09-24 19:08:55,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2020-09-24 19:08:55,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 256 transitions. [2020-09-24 19:08:55,230 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 256 transitions. Word has length 154 [2020-09-24 19:08:55,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:55,231 INFO L479 AbstractCegarLoop]: Abstraction has 238 states and 256 transitions. [2020-09-24 19:08:55,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 19:08:55,231 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 256 transitions. [2020-09-24 19:08:55,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-24 19:08:55,234 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:55,235 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] [2020-09-24 19:08:55,235 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 19:08:55,235 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:55,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:55,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1833891161, now seen corresponding path program 1 times [2020-09-24 19:08:55,236 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:55,236 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438796] [2020-09-24 19:08:55,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:55,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:55,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:55,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:56,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:56,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 19:08:56,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-24 19:08:56,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1016 [2020-09-24 19:08:56,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:56,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:08:56,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 19:08:56,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:08:56,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:56,693 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:08:56,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:08:56,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:56,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:56,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:56,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:08:56,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:56,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-24 19:08:56,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:56,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:56,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:56,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:08:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:56,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:56,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:56,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:56,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:56,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:56,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:56,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:56,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:56,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:08:56,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:56,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:56,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:56,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:56,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:56,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:56,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:56,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:56,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:56,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:56,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:56,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:08:56,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:56,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:56,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:56,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:56,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:56,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:08:56,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:56,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:56,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:56,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:08:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:56,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:56,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:56,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:56,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:56,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:56,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:56,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:56,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:56,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:56,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:56,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-24 19:08:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:56,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:56,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:56,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:08:56,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:56,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-24 19:08:56,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:56,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-24 19:08:56,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:56,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:56,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:08:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:56,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:56,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:56,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:08:56,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:56,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:56,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:56,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:08:56,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:56,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:56,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-24 19:08:56,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:56,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:56,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:56,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:56,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:56,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:08:56,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:56,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:56,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:56,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:56,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:08:56,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-24 19:08:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:56,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:56,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:56,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:56,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:56,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:56,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:56,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:56,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:56,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-24 19:08:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:56,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:56,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:56,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:08:56,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:08:56,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:08:56,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:56,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:08:56,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:08:56,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:08:56,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:08:57,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:08:57,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438796] [2020-09-24 19:08:57,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:08:57,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 19:08:57,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566712722] [2020-09-24 19:08:57,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 19:08:57,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:08:57,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 19:08:57,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-24 19:08:57,029 INFO L87 Difference]: Start difference. First operand 238 states and 256 transitions. Second operand 5 states. [2020-09-24 19:08:57,762 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:08:58,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:08:58,803 INFO L93 Difference]: Finished difference Result 382 states and 434 transitions. [2020-09-24 19:08:58,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 19:08:58,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-09-24 19:08:58,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:08:58,807 INFO L225 Difference]: With dead ends: 382 [2020-09-24 19:08:58,812 INFO L226 Difference]: Without dead ends: 284 [2020-09-24 19:08:58,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-24 19:08:58,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-24 19:08:58,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 228. [2020-09-24 19:08:58,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-24 19:08:58,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 243 transitions. [2020-09-24 19:08:58,870 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 243 transitions. Word has length 162 [2020-09-24 19:08:58,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:08:58,871 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 243 transitions. [2020-09-24 19:08:58,871 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 19:08:58,871 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 243 transitions. [2020-09-24 19:08:58,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 19:08:58,874 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:08:58,874 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] [2020-09-24 19:08:58,874 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 19:08:58,875 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:08:58,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:08:58,875 INFO L82 PathProgramCache]: Analyzing trace with hash -368692979, now seen corresponding path program 1 times [2020-09-24 19:08:58,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:08:58,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536018768] [2020-09-24 19:08:58,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:08:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:08:58,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:59,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:08:59,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:08:59,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-24 19:08:59,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:08:59,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1038 [2020-09-24 19:08:59,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:08:59,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:08:59,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-24 19:08:59,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:08:59,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:00,252 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:00,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:00,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:00,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:00,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:00,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:00,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-24 19:09:00,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:00,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:00,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:00,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:00,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:00,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:00,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:00,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:00,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:00,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:00,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:00,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:00,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:00,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:00,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:00,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:00,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:00,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:00,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:00,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:00,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:00,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:00,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:00,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:00,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:00,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:00,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:00,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:00,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:00,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:00,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:00,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:00,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:00,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:00,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:00,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:00,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:00,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:00,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:00,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:00,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:00,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:00,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:00,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:00,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:09:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:00,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:00,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:00,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-24 19:09:00,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:00,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:09:00,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:00,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:09:00,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 19:09:00,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:09:00,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:00,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:09:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:00,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:00,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:00,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:00,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:00,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:09:00,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:00,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:00,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:09:00,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 19:09:00,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-24 19:09:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:00,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:00,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:00,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:00,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:00,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:00,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:00,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:00,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:00,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:00,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-24 19:09:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:00,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:00,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:00,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:00,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:00,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:00,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:00,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:00,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:00,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-24 19:09:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:00,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:00,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:00,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:00,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:00,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:00,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:00,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:00,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:00,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:00,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:00,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536018768] [2020-09-24 19:09:00,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:00,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 19:09:00,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475569513] [2020-09-24 19:09:00,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 19:09:00,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:00,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 19:09:00,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 19:09:00,558 INFO L87 Difference]: Start difference. First operand 228 states and 243 transitions. Second operand 6 states. [2020-09-24 19:09:01,217 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:02,669 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:03,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:03,274 INFO L93 Difference]: Finished difference Result 522 states and 592 transitions. [2020-09-24 19:09:03,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 19:09:03,275 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-09-24 19:09:03,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:03,280 INFO L225 Difference]: With dead ends: 522 [2020-09-24 19:09:03,280 INFO L226 Difference]: Without dead ends: 404 [2020-09-24 19:09:03,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:09:03,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2020-09-24 19:09:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 345. [2020-09-24 19:09:03,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-09-24 19:09:03,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 372 transitions. [2020-09-24 19:09:03,359 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 372 transitions. Word has length 171 [2020-09-24 19:09:03,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:03,360 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 372 transitions. [2020-09-24 19:09:03,360 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 19:09:03,360 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 372 transitions. [2020-09-24 19:09:03,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-24 19:09:03,362 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:03,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:03,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 19:09:03,363 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:03,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:03,364 INFO L82 PathProgramCache]: Analyzing trace with hash 579054747, now seen corresponding path program 1 times [2020-09-24 19:09:03,364 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:03,364 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [811057856] [2020-09-24 19:09:03,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:03,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:03,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:03,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 234 [2020-09-24 19:09:04,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 19:09:04,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1050 [2020-09-24 19:09:04,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:09:04,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-24 19:09:04,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-24 19:09:04,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:04,794 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:04,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:04,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-24 19:09:04,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:04,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:04,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:04,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:04,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:04,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:04,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:04,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:04,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:04,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:04,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:04,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:04,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:04,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:04,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:04,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:04,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:04,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:04,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:04,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:04,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:04,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:04,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:04,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:04,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:04,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 19:09:04,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:04,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:05,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:05,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:09:05,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:05,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-24 19:09:05,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:05,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:05,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:05,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-24 19:09:05,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:05,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:09:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:05,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:05,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:05,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:09:05,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:05,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 19:09:05,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:05,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:05,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:09:05,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:05,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:09:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:05,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:05,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:05,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:09:05,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:05,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:09:05,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:05,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:05,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 19:09:05,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:05,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:09:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:05,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:05,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:05,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:05,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:05,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:05,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:05,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:05,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:05,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 19:09:05,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:05,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-09-24 19:09:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:05,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:05,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:05,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:05,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:05,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:05,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:05,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:05,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:05,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:05,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:05,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-24 19:09:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:05,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:05,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:05,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:05,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:05,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:09:05,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:05,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:05,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:05,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-24 19:09:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:05,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:05,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:05,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:05,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:05,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:05,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:05,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:05,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:05,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:05,202 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [811057856] [2020-09-24 19:09:05,202 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:05,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:09:05,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279251761] [2020-09-24 19:09:05,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:09:05,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:05,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:09:05,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:09:05,204 INFO L87 Difference]: Start difference. First operand 345 states and 372 transitions. Second operand 10 states. [2020-09-24 19:09:05,779 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:07,555 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:08,187 WARN L193 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-24 19:09:08,537 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:08,870 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:09,199 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:09:09,520 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-24 19:09:09,820 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:10,215 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:11,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:11,004 INFO L93 Difference]: Finished difference Result 858 states and 1007 transitions. [2020-09-24 19:09:11,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 19:09:11,005 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2020-09-24 19:09:11,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:11,011 INFO L225 Difference]: With dead ends: 858 [2020-09-24 19:09:11,014 INFO L226 Difference]: Without dead ends: 623 [2020-09-24 19:09:11,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-24 19:09:11,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-09-24 19:09:11,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 548. [2020-09-24 19:09:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-09-24 19:09:11,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 608 transitions. [2020-09-24 19:09:11,119 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 608 transitions. Word has length 195 [2020-09-24 19:09:11,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:11,120 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 608 transitions. [2020-09-24 19:09:11,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:09:11,120 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 608 transitions. [2020-09-24 19:09:11,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 19:09:11,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:11,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:11,126 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 19:09:11,126 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:11,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:11,126 INFO L82 PathProgramCache]: Analyzing trace with hash 720775112, now seen corresponding path program 1 times [2020-09-24 19:09:11,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:11,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [558912819] [2020-09-24 19:09:11,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:11,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-24 19:09:12,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 851 [2020-09-24 19:09:12,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:12,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-09-24 19:09:12,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:09:12,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:12,331 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:12,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:12,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-24 19:09:12,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:12,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:12,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:12,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:12,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:12,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:12,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:12,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:12,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:12,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:12,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:12,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:12,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:12,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:12,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:12,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:12,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:12,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:12,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:12,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:12,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:12,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:12,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:12,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 19:09:12,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:12,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:12,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:12,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:09:12,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:09:12,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:12,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:12,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:12,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:12,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:09:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:09:12,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 19:09:12,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-24 19:09:12,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:09:12,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:12,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:09:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:09:12,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 19:09:12,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:12,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 19:09:12,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 19:09:12,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:12,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:09:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:09:12,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-24 19:09:12,694 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 19:09:12,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:12,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:12,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:12,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:09:12,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:12,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:12,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 19:09:12,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:12,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:12,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 19:09:12,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:12,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:12,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:12,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:12,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:12,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:12,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 19:09:12,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:12,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:12,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:12,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:12,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:12,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:12,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 19:09:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:12,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:12,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:12,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:12,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:12,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:12,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:12,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:12,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:12,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:12,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [558912819] [2020-09-24 19:09:12,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:12,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-24 19:09:12,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726132860] [2020-09-24 19:09:12,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 19:09:12,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:12,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 19:09:12,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 19:09:12,812 INFO L87 Difference]: Start difference. First operand 548 states and 608 transitions. Second operand 9 states. [2020-09-24 19:09:13,998 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:14,282 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:14,557 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:14,850 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:15,154 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:16,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:16,198 INFO L93 Difference]: Finished difference Result 1115 states and 1298 transitions. [2020-09-24 19:09:16,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 19:09:16,199 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 200 [2020-09-24 19:09:16,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:16,203 INFO L225 Difference]: With dead ends: 1115 [2020-09-24 19:09:16,203 INFO L226 Difference]: Without dead ends: 677 [2020-09-24 19:09:16,205 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-09-24 19:09:16,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2020-09-24 19:09:16,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 547. [2020-09-24 19:09:16,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2020-09-24 19:09:16,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 606 transitions. [2020-09-24 19:09:16,274 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 606 transitions. Word has length 200 [2020-09-24 19:09:16,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:16,275 INFO L479 AbstractCegarLoop]: Abstraction has 547 states and 606 transitions. [2020-09-24 19:09:16,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-24 19:09:16,275 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 606 transitions. [2020-09-24 19:09:16,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-24 19:09:16,279 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:16,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:16,279 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 19:09:16,280 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:16,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:16,280 INFO L82 PathProgramCache]: Analyzing trace with hash -896240792, now seen corresponding path program 1 times [2020-09-24 19:09:16,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:16,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803996632] [2020-09-24 19:09:16,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:16,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:16,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-09-24 19:09:17,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 886 [2020-09-24 19:09:17,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:09:17,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-09-24 19:09:17,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:09:17,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:17,514 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:17,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:17,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-09-24 19:09:17,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:17,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:17,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:17,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:17,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:17,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:17,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:17,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:17,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:17,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:17,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:17,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:09:17,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:17,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:17,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:17,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:17,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:17,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:17,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:09:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:09:17,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:09:17,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:17,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:17,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:17,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:09:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-24 19:09:17,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 19:09:17,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:09:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-24 19:09:17,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-24 19:09:17,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:09:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:09:17,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 19:09:17,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-24 19:09:17,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:09:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:09:17,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:17,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-24 19:09:17,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:17,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:17,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:17,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:17,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:17,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:09:17,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:17,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:17,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:17,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:18,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:18,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:18,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:18,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:18,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-24 19:09:18,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:18,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:18,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-24 19:09:18,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:18,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:18,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:18,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:18,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:18,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:18,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:18,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:18,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:18,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:18,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-24 19:09:18,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:18,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:18,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:18,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:18,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:18,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:09:18,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:18,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:18,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:18,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:18,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:18,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-09-24 19:09:18,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:18,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:18,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:18,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:18,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:18,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:18,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:18,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:18,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 19:09:18,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:18,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:18,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:18,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803996632] [2020-09-24 19:09:18,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:18,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:09:18,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272287065] [2020-09-24 19:09:18,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:09:18,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:18,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:09:18,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:09:18,103 INFO L87 Difference]: Start difference. First operand 547 states and 606 transitions. Second operand 10 states. [2020-09-24 19:09:19,583 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:19,830 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:20,102 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:09:20,433 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:20,764 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:21,066 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:22,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:22,177 INFO L93 Difference]: Finished difference Result 1061 states and 1241 transitions. [2020-09-24 19:09:22,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 19:09:22,178 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 200 [2020-09-24 19:09:22,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:22,183 INFO L225 Difference]: With dead ends: 1061 [2020-09-24 19:09:22,184 INFO L226 Difference]: Without dead ends: 624 [2020-09-24 19:09:22,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2020-09-24 19:09:22,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-09-24 19:09:22,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 502. [2020-09-24 19:09:22,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2020-09-24 19:09:22,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 554 transitions. [2020-09-24 19:09:22,286 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 554 transitions. Word has length 200 [2020-09-24 19:09:22,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:22,287 INFO L479 AbstractCegarLoop]: Abstraction has 502 states and 554 transitions. [2020-09-24 19:09:22,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:09:22,287 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 554 transitions. [2020-09-24 19:09:22,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-24 19:09:22,292 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 19:09:22,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 19:09:22,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 19:09:22,292 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 19:09:22,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 19:09:22,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1844576185, now seen corresponding path program 1 times [2020-09-24 19:09:22,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 19:09:22,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55474131] [2020-09-24 19:09:22,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 19:09:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:22,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 242 [2020-09-24 19:09:23,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 879 [2020-09-24 19:09:23,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-24 19:09:23,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 191 [2020-09-24 19:09:23,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-24 19:09:23,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:23,538 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:23,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 19:09:23,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 19:09:23,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-24 19:09:23,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:23,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:23,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:23,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 19:09:23,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:23,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:23,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:23,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:23,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:23,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 19:09:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:23,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,732 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:23,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:23,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:23,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:23,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 19:09:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:23,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:23,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:23,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:23,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 19:09:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 19:09:23,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 19:09:23,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:23,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:23,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 19:09:23,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 19:09:23,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-24 19:09:23,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:23,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:23,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:23,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 19:09:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-24 19:09:23,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 19:09:23,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-09-24 19:09:23,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:23,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-24 19:09:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-24 19:09:23,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-24 19:09:23,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:23,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:23,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:23,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 19:09:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-24 19:09:23,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:23,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 19:09:23,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 19:09:23,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:23,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-24 19:09:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 19:09:23,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 19:09:23,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:23,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 19:09:23,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:23,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 19:09:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:23,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 19:09:23,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:23,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:23,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:23,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-09-24 19:09:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:23,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 19:09:23,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 19:09:23,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:23,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 19:09:23,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-24 19:09:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 19:09:23,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 19:09:23,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 19:09:23,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 19:09:23,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 19:09:23,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-24 19:09:23,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 19:09:23,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 19:09:23,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 19:09:23,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 19:09:23,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 19:09:24,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 19:09:24,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55474131] [2020-09-24 19:09:24,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 19:09:24,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-24 19:09:24,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232773498] [2020-09-24 19:09:24,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 19:09:24,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 19:09:24,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 19:09:24,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-24 19:09:24,028 INFO L87 Difference]: Start difference. First operand 502 states and 554 transitions. Second operand 10 states. [2020-09-24 19:09:25,072 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-24 19:09:25,839 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 19:09:26,989 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-24 19:09:27,611 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-24 19:09:27,998 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:28,337 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:28,674 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:29,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 19:09:29,154 INFO L93 Difference]: Finished difference Result 958 states and 1089 transitions. [2020-09-24 19:09:29,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-24 19:09:29,154 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 201 [2020-09-24 19:09:29,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 19:09:29,155 INFO L225 Difference]: With dead ends: 958 [2020-09-24 19:09:29,156 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 19:09:29,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2020-09-24 19:09:29,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 19:09:29,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 19:09:29,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 19:09:29,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 19:09:29,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 201 [2020-09-24 19:09:29,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 19:09:29,160 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 19:09:29,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 19:09:29,160 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 19:09:29,160 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 19:09:29,161 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 19:09:29,164 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 19:09:29,390 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:09:29,571 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:29,743 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:29,922 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:30,102 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:09:30,271 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-24 19:09:30,444 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:30,624 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:30,793 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:30,972 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:09:31,131 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:31,290 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:31,452 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:32,540 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 228 DAG size of output: 216 [2020-09-24 19:09:32,706 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:09:32,867 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:33,031 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:09:33,172 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 19:09:33,331 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-24 19:09:33,490 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:33,646 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 19:09:33,809 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 19:09:33,962 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 19:09:34,322 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 198 [2020-09-24 19:09:34,474 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 14 [2020-09-24 19:09:34,831 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 198