/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-89f541c [2020-08-27 21:40:47,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-27 21:40:47,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-27 21:40:47,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-27 21:40:47,079 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-27 21:40:47,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-27 21:40:47,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-27 21:40:47,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-27 21:40:47,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-27 21:40:47,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-27 21:40:47,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-27 21:40:47,107 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-27 21:40:47,107 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-27 21:40:47,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-27 21:40:47,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-27 21:40:47,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-27 21:40:47,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-27 21:40:47,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-27 21:40:47,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-27 21:40:47,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-27 21:40:47,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-27 21:40:47,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-27 21:40:47,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-27 21:40:47,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-27 21:40:47,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-27 21:40:47,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-27 21:40:47,139 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-27 21:40:47,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-27 21:40:47,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-27 21:40:47,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-27 21:40:47,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-27 21:40:47,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-27 21:40:47,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-27 21:40:47,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-27 21:40:47,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-27 21:40:47,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-27 21:40:47,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-27 21:40:47,151 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-27 21:40:47,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-27 21:40:47,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-27 21:40:47,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-27 21:40:47,155 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 [2020-08-27 21:40:47,199 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-27 21:40:47,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-27 21:40:47,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-27 21:40:47,202 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-27 21:40:47,202 INFO L138 SettingsManager]: * Use SBE=true [2020-08-27 21:40:47,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-27 21:40:47,203 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-27 21:40:47,203 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-27 21:40:47,203 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-27 21:40:47,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-27 21:40:47,204 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-27 21:40:47,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-27 21:40:47,205 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-27 21:40:47,205 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-27 21:40:47,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-27 21:40:47,206 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-27 21:40:47,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-27 21:40:47,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-27 21:40:47,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-27 21:40:47,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-27 21:40:47,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-27 21:40:47,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-27 21:40:47,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-27 21:40:47,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-27 21:40:47,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-27 21:40:47,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-27 21:40:47,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-27 21:40:47,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-27 21:40:47,208 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-27 21:40:47,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-08-27 21:40:47,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-27 21:40:47,669 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-27 21:40:47,673 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-27 21:40:47,674 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-27 21:40:47,675 INFO L275 PluginConnector]: CDTParser initialized [2020-08-27 21:40:47,676 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product28.cil.c [2020-08-27 21:40:47,760 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d958090f1/2495ef71675d4b1b8c6dbf7b08a6e407/FLAGa14af4e30 [2020-08-27 21:40:48,373 INFO L306 CDTParser]: Found 1 translation units. [2020-08-27 21:40:48,376 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product28.cil.c [2020-08-27 21:40:48,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d958090f1/2495ef71675d4b1b8c6dbf7b08a6e407/FLAGa14af4e30 [2020-08-27 21:40:48,618 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d958090f1/2495ef71675d4b1b8c6dbf7b08a6e407 [2020-08-27 21:40:48,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-27 21:40:48,632 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-27 21:40:48,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-27 21:40:48,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-27 21:40:48,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-27 21:40:48,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:40:48" (1/1) ... [2020-08-27 21:40:48,646 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 27.08 09:40:48, skipping insertion in model container [2020-08-27 21:40:48,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 09:40:48" (1/1) ... [2020-08-27 21:40:48,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-27 21:40:48,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-27 21:40:49,091 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:40:49,106 INFO L203 MainTranslator]: Completed pre-run [2020-08-27 21:40:49,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-27 21:40:49,374 INFO L208 MainTranslator]: Completed translation [2020-08-27 21:40:49,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:49 WrapperNode [2020-08-27 21:40:49,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-27 21:40:49,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-27 21:40:49,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-27 21:40:49,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-27 21:40:49,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:49" (1/1) ... [2020-08-27 21:40:49,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:49" (1/1) ... [2020-08-27 21:40:49,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:49" (1/1) ... [2020-08-27 21:40:49,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:49" (1/1) ... [2020-08-27 21:40:49,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:49" (1/1) ... [2020-08-27 21:40:49,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:49" (1/1) ... [2020-08-27 21:40:49,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:49" (1/1) ... [2020-08-27 21:40:49,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-27 21:40:49,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-27 21:40:49,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-27 21:40:49,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-27 21:40:49,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:49" (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 [2020-08-27 21:40:49,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-27 21:40:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-27 21:40:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-27 21:40:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-27 21:40:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-27 21:40:49,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-27 21:40:49,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-27 21:40:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-27 21:40:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-27 21:40:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-27 21:40:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-08-27 21:40:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-27 21:40:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-27 21:40:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-27 21:40:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-27 21:40:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-27 21:40:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-27 21:40:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-27 21:40:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-27 21:40:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-27 21:40:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-27 21:40:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-27 21:40:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-27 21:40:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-27 21:40:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-27 21:40:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-27 21:40:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-27 21:40:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-27 21:40:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-27 21:40:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-27 21:40:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-27 21:40:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-27 21:40:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-27 21:40:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-27 21:40:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-27 21:40:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-27 21:40:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-27 21:40:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-27 21:40:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-27 21:40:49,580 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-27 21:40:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-27 21:40:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-27 21:40:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-27 21:40:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-27 21:40:49,580 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-27 21:40:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-27 21:40:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-27 21:40:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-27 21:40:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-27 21:40:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-27 21:40:49,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-27 21:40:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-27 21:40:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-27 21:40:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-27 21:40:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-27 21:40:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-27 21:40:49,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-27 21:40:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-27 21:40:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-27 21:40:49,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-27 21:40:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-27 21:40:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-27 21:40:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-27 21:40:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-08-27 21:40:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-27 21:40:49,584 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-27 21:40:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-27 21:40:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-27 21:40:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-27 21:40:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-27 21:40:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-27 21:40:49,585 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-27 21:40:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-27 21:40:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-27 21:40:49,586 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-27 21:40:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-27 21:40:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-27 21:40:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-27 21:40:49,587 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-27 21:40:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-27 21:40:49,588 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-27 21:40:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-27 21:40:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-27 21:40:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-27 21:40:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-27 21:40:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-27 21:40:49,589 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-27 21:40:49,590 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-27 21:40:49,590 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-27 21:40:49,590 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-27 21:40:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-27 21:40:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-27 21:40:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-27 21:40:49,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-27 21:40:50,672 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-27 21:40:50,672 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-27 21:40:50,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:40:50 BoogieIcfgContainer [2020-08-27 21:40:50,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-27 21:40:50,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-27 21:40:50,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-27 21:40:50,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-27 21:40:50,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 09:40:48" (1/3) ... [2020-08-27 21:40:50,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6011c95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:40:50, skipping insertion in model container [2020-08-27 21:40:50,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 09:40:49" (2/3) ... [2020-08-27 21:40:50,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6011c95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 09:40:50, skipping insertion in model container [2020-08-27 21:40:50,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 09:40:50" (3/3) ... [2020-08-27 21:40:50,688 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product28.cil.c [2020-08-27 21:40:50,700 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-27 21:40:50,712 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-27 21:40:50,734 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-27 21:40:50,765 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-27 21:40:50,765 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-27 21:40:50,766 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-27 21:40:50,766 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-27 21:40:50,766 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-27 21:40:50,766 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-27 21:40:50,766 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-27 21:40:50,766 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-27 21:40:50,792 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2020-08-27 21:40:50,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-27 21:40:50,803 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:40:50,804 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:40:50,804 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:40:50,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:40:50,811 INFO L82 PathProgramCache]: Analyzing trace with hash 613458754, now seen corresponding path program 1 times [2020-08-27 21:40:50,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:40:50,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1785203768] [2020-08-27 21:40:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:40:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:51,585 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:40:51,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:40:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:51,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:40:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:51,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:40:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:51,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:40:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:51,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:40:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:51,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-27 21:40:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:51,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-27 21:40:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:51,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:40:51,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1785203768] [2020-08-27 21:40:51,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:40:51,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-27 21:40:51,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989507637] [2020-08-27 21:40:51,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-27 21:40:51,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:40:51,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-27 21:40:51,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-27 21:40:51,770 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 3 states. [2020-08-27 21:40:52,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:40:52,862 INFO L93 Difference]: Finished difference Result 270 states and 356 transitions. [2020-08-27 21:40:52,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-27 21:40:52,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-27 21:40:52,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:40:52,885 INFO L225 Difference]: With dead ends: 270 [2020-08-27 21:40:52,885 INFO L226 Difference]: Without dead ends: 147 [2020-08-27 21:40:52,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-27 21:40:52,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-08-27 21:40:52,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 114. [2020-08-27 21:40:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-08-27 21:40:52,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-08-27 21:40:52,988 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 46 [2020-08-27 21:40:52,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:40:52,989 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-08-27 21:40:52,989 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-27 21:40:52,990 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-08-27 21:40:52,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-27 21:40:52,993 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:40:52,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:40:52,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-27 21:40:52,994 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:40:52,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:40:52,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1236074797, now seen corresponding path program 1 times [2020-08-27 21:40:52,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:40:52,995 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2097539375] [2020-08-27 21:40:52,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:40:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:53,344 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:40:53,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:40:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:53,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:40:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:53,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:40:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:53,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:40:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:53,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:40:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:53,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-27 21:40:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:53,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-27 21:40:53,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:53,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:40:53,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2097539375] [2020-08-27 21:40:53,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:40:53,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-27 21:40:53,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48181762] [2020-08-27 21:40:53,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-27 21:40:53,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:40:53,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-27 21:40:53,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-27 21:40:53,404 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 4 states. [2020-08-27 21:40:53,881 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-27 21:40:54,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:40:54,602 INFO L93 Difference]: Finished difference Result 193 states and 235 transitions. [2020-08-27 21:40:54,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-27 21:40:54,603 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-27 21:40:54,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:40:54,606 INFO L225 Difference]: With dead ends: 193 [2020-08-27 21:40:54,606 INFO L226 Difference]: Without dead ends: 131 [2020-08-27 21:40:54,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-27 21:40:54,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-08-27 21:40:54,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 105. [2020-08-27 21:40:54,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-08-27 21:40:54,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 121 transitions. [2020-08-27 21:40:54,642 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 121 transitions. Word has length 47 [2020-08-27 21:40:54,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:40:54,643 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 121 transitions. [2020-08-27 21:40:54,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-27 21:40:54,643 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 121 transitions. [2020-08-27 21:40:54,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-27 21:40:54,645 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:40:54,646 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] [2020-08-27 21:40:54,646 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-27 21:40:54,646 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:40:54,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:40:54,647 INFO L82 PathProgramCache]: Analyzing trace with hash 1340711329, now seen corresponding path program 1 times [2020-08-27 21:40:54,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:40:54,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750732177] [2020-08-27 21:40:54,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:40:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,028 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:40:55,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:40:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:40:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:40:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:40:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:40:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-27 21:40:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-08-27 21:40:55,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:55,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:40:55,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1750732177] [2020-08-27 21:40:55,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:40:55,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-27 21:40:55,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691988088] [2020-08-27 21:40:55,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-27 21:40:55,136 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:40:55,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-27 21:40:55,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-27 21:40:55,137 INFO L87 Difference]: Start difference. First operand 105 states and 121 transitions. Second operand 8 states. [2020-08-27 21:40:55,582 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:40:55,958 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:40:56,281 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:40:56,577 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:40:57,408 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-27 21:40:58,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:40:58,978 INFO L93 Difference]: Finished difference Result 366 states and 454 transitions. [2020-08-27 21:40:58,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-27 21:40:58,979 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-08-27 21:40:58,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:40:58,984 INFO L225 Difference]: With dead ends: 366 [2020-08-27 21:40:58,985 INFO L226 Difference]: Without dead ends: 285 [2020-08-27 21:40:58,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-08-27 21:40:58,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-08-27 21:40:59,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 224. [2020-08-27 21:40:59,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-08-27 21:40:59,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 270 transitions. [2020-08-27 21:40:59,063 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 270 transitions. Word has length 52 [2020-08-27 21:40:59,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:40:59,064 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 270 transitions. [2020-08-27 21:40:59,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-27 21:40:59,064 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 270 transitions. [2020-08-27 21:40:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-08-27 21:40:59,066 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:40:59,066 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] [2020-08-27 21:40:59,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-27 21:40:59,069 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:40:59,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:40:59,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1244554845, now seen corresponding path program 1 times [2020-08-27 21:40:59,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:40:59,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907216236] [2020-08-27 21:40:59,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:40:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:59,503 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:40:59,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:40:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:59,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:40:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:59,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:40:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:59,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:40:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:59,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:40:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:59,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-27 21:40:59,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:59,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-27 21:40:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:59,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-27 21:40:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:40:59,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:40:59,682 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907216236] [2020-08-27 21:40:59,682 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:40:59,682 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-27 21:40:59,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280576749] [2020-08-27 21:40:59,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-27 21:40:59,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:40:59,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-27 21:40:59,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-27 21:40:59,685 INFO L87 Difference]: Start difference. First operand 224 states and 270 transitions. Second operand 12 states. [2020-08-27 21:41:00,162 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:41:00,490 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:41:00,797 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:41:01,133 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:41:01,731 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-27 21:41:02,684 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:41:03,120 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:03,491 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:03,840 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-27 21:41:04,144 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:41:04,567 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:04,916 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:05,219 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-27 21:41:06,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:41:06,438 INFO L93 Difference]: Finished difference Result 891 states and 1198 transitions. [2020-08-27 21:41:06,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-27 21:41:06,439 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2020-08-27 21:41:06,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:41:06,448 INFO L225 Difference]: With dead ends: 891 [2020-08-27 21:41:06,448 INFO L226 Difference]: Without dead ends: 691 [2020-08-27 21:41:06,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-08-27 21:41:06,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-08-27 21:41:06,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 594. [2020-08-27 21:41:06,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 594 states. [2020-08-27 21:41:06,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 736 transitions. [2020-08-27 21:41:06,619 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 736 transitions. Word has length 57 [2020-08-27 21:41:06,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:41:06,620 INFO L479 AbstractCegarLoop]: Abstraction has 594 states and 736 transitions. [2020-08-27 21:41:06,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-27 21:41:06,620 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 736 transitions. [2020-08-27 21:41:06,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-08-27 21:41:06,624 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:41:06,624 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] [2020-08-27 21:41:06,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-27 21:41:06,625 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:41:06,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:41:06,625 INFO L82 PathProgramCache]: Analyzing trace with hash 520525257, now seen corresponding path program 1 times [2020-08-27 21:41:06,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:41:06,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [16120658] [2020-08-27 21:41:06,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:41:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:06,969 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:41:06,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:41:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:07,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:41:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:07,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:41:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:07,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:41:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:07,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:41:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:07,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-27 21:41:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:07,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-08-27 21:41:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:07,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-27 21:41:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:07,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-08-27 21:41:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:07,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-27 21:41:07,106 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [16120658] [2020-08-27 21:41:07,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-27 21:41:07,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-27 21:41:07,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694296893] [2020-08-27 21:41:07,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-27 21:41:07,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:41:07,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-27 21:41:07,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-27 21:41:07,113 INFO L87 Difference]: Start difference. First operand 594 states and 736 transitions. Second operand 6 states. [2020-08-27 21:41:07,486 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:41:08,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:41:08,502 INFO L93 Difference]: Finished difference Result 1039 states and 1358 transitions. [2020-08-27 21:41:08,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-27 21:41:08,503 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-08-27 21:41:08,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:41:08,507 INFO L225 Difference]: With dead ends: 1039 [2020-08-27 21:41:08,507 INFO L226 Difference]: Without dead ends: 469 [2020-08-27 21:41:08,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-08-27 21:41:08,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2020-08-27 21:41:08,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 402. [2020-08-27 21:41:08,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-08-27 21:41:08,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 461 transitions. [2020-08-27 21:41:08,589 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 461 transitions. Word has length 61 [2020-08-27 21:41:08,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:41:08,589 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 461 transitions. [2020-08-27 21:41:08,589 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-27 21:41:08,590 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 461 transitions. [2020-08-27 21:41:08,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-08-27 21:41:08,592 INFO L414 BasicCegarLoop]: Found error trace [2020-08-27 21:41:08,593 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-27 21:41:08,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-27 21:41:08,593 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-27 21:41:08,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-27 21:41:08,593 INFO L82 PathProgramCache]: Analyzing trace with hash -175028075, now seen corresponding path program 1 times [2020-08-27 21:41:08,594 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-27 21:41:08,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678248757] [2020-08-27 21:41:08,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-27 21:41:08,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:08,936 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:41:08,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-27 21:41:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:08,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-27 21:41:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:08,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-27 21:41:08,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:08,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-27 21:41:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:09,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-27 21:41:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:09,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-27 21:41:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:09,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-27 21:41:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:09,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-27 21:41:09,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:09,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-27 21:41:09,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:09,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-27 21:41:09,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:09,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-08-27 21:41:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:09,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-27 21:41:09,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:09,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-27 21:41:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-27 21:41:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-08-27 21:41:09,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678248757] [2020-08-27 21:41:09,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-27 21:41:09,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-27 21:41:09,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070088500] [2020-08-27 21:41:09,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-27 21:41:09,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-27 21:41:09,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-27 21:41:09,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-27 21:41:09,122 INFO L87 Difference]: Start difference. First operand 402 states and 461 transitions. Second operand 10 states. [2020-08-27 21:41:09,852 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-08-27 21:41:10,497 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-27 21:41:11,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-27 21:41:11,538 INFO L93 Difference]: Finished difference Result 565 states and 675 transitions. [2020-08-27 21:41:11,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-27 21:41:11,539 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2020-08-27 21:41:11,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-27 21:41:11,540 INFO L225 Difference]: With dead ends: 565 [2020-08-27 21:41:11,540 INFO L226 Difference]: Without dead ends: 0 [2020-08-27 21:41:11,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-08-27 21:41:11,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-27 21:41:11,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-27 21:41:11,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-27 21:41:11,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-27 21:41:11,543 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2020-08-27 21:41:11,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-27 21:41:11,543 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-27 21:41:11,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-27 21:41:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-27 21:41:11,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-27 21:41:11,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-27 21:41:11,546 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-27 21:41:11,737 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:12,069 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:12,401 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:12,566 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:12,898 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:13,403 WARN L193 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 203 [2020-08-27 21:41:13,573 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:13,906 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:14,236 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:14,394 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:14,717 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:15,170 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 203 [2020-08-27 21:41:15,512 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:15,867 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 27 [2020-08-27 21:41:16,185 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:16,733 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 218 [2020-08-27 21:41:17,063 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-27 21:41:17,610 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 218 [2020-08-27 21:41:17,941 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-27 21:41:18,488 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 218 [2020-08-27 21:41:18,633 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:41:18,970 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:19,122 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:19,441 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:19,605 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:19,932 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:20,246 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-08-27 21:41:20,404 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:20,721 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:20,882 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:21,051 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:21,362 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-08-27 21:41:21,678 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:22,001 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:22,158 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:22,310 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:22,628 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:22,795 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:22,955 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:23,269 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-08-27 21:41:23,586 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:23,904 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:24,220 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:24,379 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:24,695 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:24,849 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:25,166 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:25,514 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 26 [2020-08-27 21:41:25,820 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-08-27 21:41:26,150 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-08-27 21:41:26,471 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-08-27 21:41:26,787 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:27,105 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:27,422 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:27,725 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-08-27 21:41:28,042 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:28,372 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-08-27 21:41:28,530 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:28,840 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-08-27 21:41:29,158 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:29,478 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:29,630 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:29,787 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:30,276 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 220 [2020-08-27 21:41:30,533 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 190 [2020-08-27 21:41:30,952 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 219 [2020-08-27 21:41:31,218 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-27 21:41:31,641 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 219 [2020-08-27 21:41:32,156 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 217 [2020-08-27 21:41:32,424 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-27 21:41:32,843 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 219 [2020-08-27 21:41:33,110 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 193 [2020-08-27 21:41:33,532 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 203 [2020-08-27 21:41:33,863 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:41:34,192 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 221 [2020-08-27 21:41:34,509 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:34,835 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:34,992 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:35,308 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:35,628 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:35,786 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:35,943 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:36,252 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 217 [2020-08-27 21:41:36,569 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 219 [2020-08-27 21:41:36,888 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:37,041 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-27 21:41:37,198 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-27 21:41:37,523 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:38,127 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 211 [2020-08-27 21:41:38,677 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 218 [2020-08-27 21:41:39,200 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 218 [2020-08-27 21:41:39,532 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-27 21:41:39,866 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 191 [2020-08-27 21:41:40,390 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 218 [2020-08-27 21:41:40,708 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2020-08-27 21:41:41,151 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 219 [2020-08-27 21:41:41,404 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-27 21:41:41,914 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2020-08-27 21:41:42,234 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-27 21:41:42,748 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2020-08-27 21:41:43,200 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 219 [2020-08-27 21:41:43,454 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-27 21:41:43,961 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 218 [2020-08-27 21:41:44,278 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-08-27 21:41:45,106 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 18 [2020-08-27 21:41:45,569 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-27 21:41:45,895 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 1 [2020-08-27 21:41:46,672 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-27 21:41:47,212 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2020-08-27 21:41:47,816 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 17 [2020-08-27 21:41:48,067 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-27 21:41:48,962 WARN L193 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 21 [2020-08-27 21:41:49,143 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-27 21:41:50,057 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 18 [2020-08-27 21:41:50,165 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 1 [2020-08-27 21:41:51,072 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 16 [2020-08-27 21:41:51,295 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 1 [2020-08-27 21:41:52,033 WARN L193 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 19 [2020-08-27 21:41:52,629 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-08-27 21:41:53,141 WARN L193 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 24 [2020-08-27 21:41:53,632 WARN L193 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22