/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_spec3_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 10:07:29,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 10:07:29,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 10:07:29,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 10:07:29,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 10:07:29,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 10:07:29,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 10:07:29,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 10:07:29,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 10:07:29,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 10:07:29,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 10:07:29,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 10:07:29,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 10:07:29,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 10:07:29,814 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 10:07:29,815 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 10:07:29,816 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 10:07:29,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 10:07:29,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 10:07:29,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 10:07:29,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 10:07:29,834 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 10:07:29,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 10:07:29,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 10:07:29,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 10:07:29,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 10:07:29,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 10:07:29,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 10:07:29,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 10:07:29,848 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 10:07:29,848 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 10:07:29,850 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 10:07:29,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 10:07:29,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 10:07:29,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 10:07:29,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 10:07:29,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 10:07:29,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 10:07:29,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 10:07:29,859 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 10:07:29,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 10:07:29,862 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 10:07:29,921 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 10:07:29,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 10:07:29,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 10:07:29,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 10:07:29,923 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 10:07:29,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 10:07:29,924 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 10:07:29,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 10:07:29,924 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 10:07:29,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 10:07:29,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 10:07:29,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 10:07:29,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 10:07:29,925 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 10:07:29,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 10:07:29,925 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 10:07:29,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 10:07:29,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 10:07:29,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 10:07:29,926 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 10:07:29,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 10:07:29,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:07:29,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 10:07:29,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 10:07:29,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 10:07:29,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 10:07:29,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 10:07:29,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 10:07:29,928 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 10:07:29,928 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 [2020-09-21 10:07:30,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 10:07:30,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 10:07:30,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 10:07:30,442 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 10:07:30,443 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 10:07:30,444 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c [2020-09-21 10:07:30,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3e2c89335/ddabca1712fa46a5ba6fbefed2c0e618/FLAG3421bee24 [2020-09-21 10:07:31,142 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 10:07:31,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c [2020-09-21 10:07:31,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3e2c89335/ddabca1712fa46a5ba6fbefed2c0e618/FLAG3421bee24 [2020-09-21 10:07:31,413 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3e2c89335/ddabca1712fa46a5ba6fbefed2c0e618 [2020-09-21 10:07:31,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 10:07:31,436 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 10:07:31,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 10:07:31,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 10:07:31,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 10:07:31,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:07:31" (1/1) ... [2020-09-21 10:07:31,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@145c9163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:07:31, skipping insertion in model container [2020-09-21 10:07:31,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 10:07:31" (1/1) ... [2020-09-21 10:07:31,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 10:07:31,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 10:07:32,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:07:32,129 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 10:07:32,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 10:07:32,249 INFO L208 MainTranslator]: Completed translation [2020-09-21 10:07:32,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:07:32 WrapperNode [2020-09-21 10:07:32,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 10:07:32,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 10:07:32,251 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 10:07:32,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 10:07:32,269 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:07:32" (1/1) ... [2020-09-21 10:07:32,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:07:32" (1/1) ... [2020-09-21 10:07:32,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:07:32" (1/1) ... [2020-09-21 10:07:32,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:07:32" (1/1) ... [2020-09-21 10:07:32,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:07:32" (1/1) ... [2020-09-21 10:07:32,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:07:32" (1/1) ... [2020-09-21 10:07:32,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:07:32" (1/1) ... [2020-09-21 10:07:32,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 10:07:32,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 10:07:32,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 10:07:32,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 10:07:32,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:07:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 10:07:32,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 10:07:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 10:07:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 10:07:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 10:07:32,450 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 10:07:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 10:07:32,451 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 10:07:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 10:07:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 10:07:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-21 10:07:32,453 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 10:07:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 10:07:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 10:07:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 10:07:32,454 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 10:07:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 10:07:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 10:07:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 10:07:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 10:07:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 10:07:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 10:07:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 10:07:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 10:07:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 10:07:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-21 10:07:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 10:07:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 10:07:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 10:07:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 10:07:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 10:07:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 10:07:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-21 10:07:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 10:07:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 10:07:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 10:07:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 10:07:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 10:07:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 10:07:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 10:07:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 10:07:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 10:07:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 10:07:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 10:07:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 10:07:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 10:07:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 10:07:32,461 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-21 10:07:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 10:07:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 10:07:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 10:07:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 10:07:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 10:07:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 10:07:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 10:07:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 10:07:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 10:07:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 10:07:32,463 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 10:07:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 10:07:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 10:07:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 10:07:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 10:07:32,464 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 10:07:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 10:07:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 10:07:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 10:07:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 10:07:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 10:07:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 10:07:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 10:07:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 10:07:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 10:07:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 10:07:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 10:07:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 10:07:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 10:07:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 10:07:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 10:07:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 10:07:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 10:07:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 10:07:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-21 10:07:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-21 10:07:32,468 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 10:07:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 10:07:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 10:07:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 10:07:32,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 10:07:33,626 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 10:07:33,626 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 10:07:33,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:07:33 BoogieIcfgContainer [2020-09-21 10:07:33,633 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 10:07:33,634 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 10:07:33,634 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 10:07:33,638 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 10:07:33,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 10:07:31" (1/3) ... [2020-09-21 10:07:33,639 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba4163a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:07:33, skipping insertion in model container [2020-09-21 10:07:33,639 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 10:07:32" (2/3) ... [2020-09-21 10:07:33,640 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba4163a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 10:07:33, skipping insertion in model container [2020-09-21 10:07:33,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 10:07:33" (3/3) ... [2020-09-21 10:07:33,642 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2020-09-21 10:07:33,654 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 10:07:33,666 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 10:07:33,687 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 10:07:33,715 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 10:07:33,715 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 10:07:33,715 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 10:07:33,716 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 10:07:33,716 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 10:07:33,716 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 10:07:33,716 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 10:07:33,716 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 10:07:33,745 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2020-09-21 10:07:33,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 10:07:33,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:07:33,759 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] [2020-09-21 10:07:33,759 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:07:33,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:07:33,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1697845513, now seen corresponding path program 1 times [2020-09-21 10:07:33,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:07:33,780 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049987105] [2020-09-21 10:07:33,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:07:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:34,537 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:07:34,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:07:34,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:34,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:07:34,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:34,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:07:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:34,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:07:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:34,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:07:34,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:34,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 10:07:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:34,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 10:07:34,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:34,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 10:07:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:34,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:07:34,635 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049987105] [2020-09-21 10:07:34,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:07:34,638 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 10:07:34,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772791136] [2020-09-21 10:07:34,645 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 10:07:34,646 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:07:34,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 10:07:34,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 10:07:34,668 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 3 states. [2020-09-21 10:07:35,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:07:35,730 INFO L93 Difference]: Finished difference Result 261 states and 345 transitions. [2020-09-21 10:07:35,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 10:07:35,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 10:07:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:07:35,750 INFO L225 Difference]: With dead ends: 261 [2020-09-21 10:07:35,750 INFO L226 Difference]: Without dead ends: 141 [2020-09-21 10:07:35,755 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 [2020-09-21 10:07:35,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-09-21 10:07:35,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 111. [2020-09-21 10:07:35,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-21 10:07:35,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 130 transitions. [2020-09-21 10:07:35,849 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 130 transitions. Word has length 52 [2020-09-21 10:07:35,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:07:35,850 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 130 transitions. [2020-09-21 10:07:35,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 10:07:35,850 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 130 transitions. [2020-09-21 10:07:35,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 10:07:35,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:07:35,854 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] [2020-09-21 10:07:35,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 10:07:35,855 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:07:35,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:07:35,856 INFO L82 PathProgramCache]: Analyzing trace with hash 1118186443, now seen corresponding path program 1 times [2020-09-21 10:07:35,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:07:35,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1731830453] [2020-09-21 10:07:35,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:07:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:36,264 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:07:36,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:07:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:36,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:07:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:36,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:07:36,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:36,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:07:36,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:36,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:07:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:36,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 10:07:36,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:36,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 10:07:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:36,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 10:07:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:36,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:07:36,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1731830453] [2020-09-21 10:07:36,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:07:36,349 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 10:07:36,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491854219] [2020-09-21 10:07:36,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 10:07:36,353 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:07:36,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 10:07:36,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 10:07:36,354 INFO L87 Difference]: Start difference. First operand 111 states and 130 transitions. Second operand 4 states. [2020-09-21 10:07:36,805 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:07:37,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:07:37,475 INFO L93 Difference]: Finished difference Result 194 states and 236 transitions. [2020-09-21 10:07:37,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 10:07:37,476 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 10:07:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:07:37,478 INFO L225 Difference]: With dead ends: 194 [2020-09-21 10:07:37,479 INFO L226 Difference]: Without dead ends: 125 [2020-09-21 10:07:37,480 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 10:07:37,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-21 10:07:37,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 102. [2020-09-21 10:07:37,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-09-21 10:07:37,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions. [2020-09-21 10:07:37,515 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 53 [2020-09-21 10:07:37,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:07:37,515 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 118 transitions. [2020-09-21 10:07:37,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 10:07:37,516 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions. [2020-09-21 10:07:37,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 10:07:37,518 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:07:37,518 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] [2020-09-21 10:07:37,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 10:07:37,519 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:07:37,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:07:37,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1001368997, now seen corresponding path program 1 times [2020-09-21 10:07:37,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:07:37,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1406070246] [2020-09-21 10:07:37,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:07:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:37,922 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:07:37,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:07:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:37,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:07:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:37,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:07:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:37,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:07:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:38,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:07:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:38,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 10:07:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:38,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 10:07:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:38,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 10:07:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:07:38,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1406070246] [2020-09-21 10:07:38,027 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:07:38,027 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 10:07:38,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748807666] [2020-09-21 10:07:38,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 10:07:38,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:07:38,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 10:07:38,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:07:38,029 INFO L87 Difference]: Start difference. First operand 102 states and 118 transitions. Second operand 8 states. [2020-09-21 10:07:38,461 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:07:38,833 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:07:39,155 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:07:39,455 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:07:40,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:07:40,466 INFO L93 Difference]: Finished difference Result 203 states and 250 transitions. [2020-09-21 10:07:40,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 10:07:40,468 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 57 [2020-09-21 10:07:40,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:07:40,471 INFO L225 Difference]: With dead ends: 203 [2020-09-21 10:07:40,471 INFO L226 Difference]: Without dead ends: 125 [2020-09-21 10:07:40,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:07:40,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-09-21 10:07:40,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 102. [2020-09-21 10:07:40,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-09-21 10:07:40,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 117 transitions. [2020-09-21 10:07:40,504 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 117 transitions. Word has length 57 [2020-09-21 10:07:40,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:07:40,504 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 117 transitions. [2020-09-21 10:07:40,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 10:07:40,505 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 117 transitions. [2020-09-21 10:07:40,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 10:07:40,507 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:07:40,507 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] [2020-09-21 10:07:40,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 10:07:40,507 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:07:40,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:07:40,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1834066652, now seen corresponding path program 1 times [2020-09-21 10:07:40,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:07:40,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319279408] [2020-09-21 10:07:40,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:07:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:40,813 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:07:40,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:07:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:40,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:07:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:40,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:07:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:40,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:07:40,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:40,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:07:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:40,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 10:07:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:40,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:07:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:40,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 10:07:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:40,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 10:07:40,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:40,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 10:07:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:07:40,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319279408] [2020-09-21 10:07:40,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:07:40,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-21 10:07:40,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550128923] [2020-09-21 10:07:40,931 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 10:07:40,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:07:40,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 10:07:40,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-21 10:07:40,932 INFO L87 Difference]: Start difference. First operand 102 states and 117 transitions. Second operand 6 states. [2020-09-21 10:07:41,292 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:07:42,625 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:07:43,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:07:43,154 INFO L93 Difference]: Finished difference Result 298 states and 368 transitions. [2020-09-21 10:07:43,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 10:07:43,156 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-09-21 10:07:43,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:07:43,159 INFO L225 Difference]: With dead ends: 298 [2020-09-21 10:07:43,161 INFO L226 Difference]: Without dead ends: 220 [2020-09-21 10:07:43,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-21 10:07:43,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-09-21 10:07:43,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 179. [2020-09-21 10:07:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2020-09-21 10:07:43,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 206 transitions. [2020-09-21 10:07:43,219 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 206 transitions. Word has length 65 [2020-09-21 10:07:43,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:07:43,220 INFO L479 AbstractCegarLoop]: Abstraction has 179 states and 206 transitions. [2020-09-21 10:07:43,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 10:07:43,220 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 206 transitions. [2020-09-21 10:07:43,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-21 10:07:43,222 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:07:43,222 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] [2020-09-21 10:07:43,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 10:07:43,223 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:07:43,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:07:43,223 INFO L82 PathProgramCache]: Analyzing trace with hash 476831218, now seen corresponding path program 1 times [2020-09-21 10:07:43,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:07:43,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601033000] [2020-09-21 10:07:43,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:07:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,538 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:07:43,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:07:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:07:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:07:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:07:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:07:43,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 10:07:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:07:43,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:07:43,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 10:07:43,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 10:07:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-09-21 10:07:43,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-09-21 10:07:43,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:07:43,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601033000] [2020-09-21 10:07:43,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:07:43,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 10:07:43,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245699442] [2020-09-21 10:07:43,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 10:07:43,746 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:07:43,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 10:07:43,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:07:43,748 INFO L87 Difference]: Start difference. First operand 179 states and 206 transitions. Second operand 8 states. [2020-09-21 10:07:44,135 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:07:45,459 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:07:45,871 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:07:46,194 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:07:46,503 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:07:47,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:07:47,179 INFO L93 Difference]: Finished difference Result 486 states and 614 transitions. [2020-09-21 10:07:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 10:07:47,181 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2020-09-21 10:07:47,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:07:47,185 INFO L225 Difference]: With dead ends: 486 [2020-09-21 10:07:47,185 INFO L226 Difference]: Without dead ends: 331 [2020-09-21 10:07:47,187 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 10:07:47,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-09-21 10:07:47,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 291. [2020-09-21 10:07:47,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-09-21 10:07:47,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 341 transitions. [2020-09-21 10:07:47,268 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 341 transitions. Word has length 79 [2020-09-21 10:07:47,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:07:47,268 INFO L479 AbstractCegarLoop]: Abstraction has 291 states and 341 transitions. [2020-09-21 10:07:47,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 10:07:47,269 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 341 transitions. [2020-09-21 10:07:47,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 10:07:47,271 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:07:47,271 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] [2020-09-21 10:07:47,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 10:07:47,271 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:07:47,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:07:47,272 INFO L82 PathProgramCache]: Analyzing trace with hash 786989304, now seen corresponding path program 1 times [2020-09-21 10:07:47,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:07:47,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823636086] [2020-09-21 10:07:47,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:07:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,639 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:07:47,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:07:47,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:07:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:07:47,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:07:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:07:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:07:47,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 10:07:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:07:47,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:07:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 10:07:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 10:07:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 10:07:47,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 10:07:47,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:47,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:07:47,791 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823636086] [2020-09-21 10:07:47,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:07:47,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-21 10:07:47,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092763369] [2020-09-21 10:07:47,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-21 10:07:47,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:07:47,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-21 10:07:47,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-09-21 10:07:47,795 INFO L87 Difference]: Start difference. First operand 291 states and 341 transitions. Second operand 9 states. [2020-09-21 10:07:48,371 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:07:49,016 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:07:50,654 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:07:52,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:07:52,140 INFO L93 Difference]: Finished difference Result 714 states and 925 transitions. [2020-09-21 10:07:52,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-21 10:07:52,141 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-09-21 10:07:52,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:07:52,147 INFO L225 Difference]: With dead ends: 714 [2020-09-21 10:07:52,147 INFO L226 Difference]: Without dead ends: 548 [2020-09-21 10:07:52,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2020-09-21 10:07:52,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-09-21 10:07:52,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 482. [2020-09-21 10:07:52,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-09-21 10:07:52,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 586 transitions. [2020-09-21 10:07:52,260 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 586 transitions. Word has length 83 [2020-09-21 10:07:52,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:07:52,261 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 586 transitions. [2020-09-21 10:07:52,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-21 10:07:52,261 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 586 transitions. [2020-09-21 10:07:52,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 10:07:52,263 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:07:52,263 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] [2020-09-21 10:07:52,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 10:07:52,264 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:07:52,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:07:52,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1116755065, now seen corresponding path program 1 times [2020-09-21 10:07:52,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:07:52,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [42138455] [2020-09-21 10:07:52,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:07:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,592 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:07:52,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:07:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:07:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:07:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:07:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:07:52,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:07:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 10:07:52,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:07:52,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:07:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 10:07:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 10:07:52,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 10:07:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 10:07:52,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:52,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:07:52,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [42138455] [2020-09-21 10:07:52,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:07:52,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 10:07:52,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657448197] [2020-09-21 10:07:52,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 10:07:52,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:07:52,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 10:07:52,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-21 10:07:52,759 INFO L87 Difference]: Start difference. First operand 482 states and 586 transitions. Second operand 8 states. [2020-09-21 10:07:53,784 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:07:54,084 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:07:54,393 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:07:55,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:07:55,354 INFO L93 Difference]: Finished difference Result 877 states and 1107 transitions. [2020-09-21 10:07:55,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 10:07:55,355 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-09-21 10:07:55,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:07:55,360 INFO L225 Difference]: With dead ends: 877 [2020-09-21 10:07:55,360 INFO L226 Difference]: Without dead ends: 524 [2020-09-21 10:07:55,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:07:55,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-09-21 10:07:55,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 482. [2020-09-21 10:07:55,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2020-09-21 10:07:55,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 585 transitions. [2020-09-21 10:07:55,449 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 585 transitions. Word has length 83 [2020-09-21 10:07:55,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:07:55,450 INFO L479 AbstractCegarLoop]: Abstraction has 482 states and 585 transitions. [2020-09-21 10:07:55,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 10:07:55,450 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 585 transitions. [2020-09-21 10:07:55,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-09-21 10:07:55,452 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:07:55,452 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] [2020-09-21 10:07:55,452 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 10:07:55,452 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:07:55,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:07:55,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1044368507, now seen corresponding path program 1 times [2020-09-21 10:07:55,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:07:55,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1283395257] [2020-09-21 10:07:55,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:07:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,776 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:07:55,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:07:55,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:07:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:07:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:07:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:07:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:07:55,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 10:07:55,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:07:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:07:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 10:07:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-09-21 10:07:55,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-09-21 10:07:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-09-21 10:07:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:07:55,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:07:55,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1283395257] [2020-09-21 10:07:55,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:07:55,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-21 10:07:55,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640162077] [2020-09-21 10:07:55,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-21 10:07:55,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:07:55,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-21 10:07:55,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-21 10:07:55,951 INFO L87 Difference]: Start difference. First operand 482 states and 585 transitions. Second operand 12 states. [2020-09-21 10:07:56,885 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:07:57,206 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:07:57,497 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:07:58,238 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:07:58,570 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:07:58,915 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:07:59,215 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:00,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:08:00,221 INFO L93 Difference]: Finished difference Result 944 states and 1184 transitions. [2020-09-21 10:08:00,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-21 10:08:00,223 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 83 [2020-09-21 10:08:00,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:08:00,226 INFO L225 Difference]: With dead ends: 944 [2020-09-21 10:08:00,226 INFO L226 Difference]: Without dead ends: 486 [2020-09-21 10:08:00,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2020-09-21 10:08:00,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-09-21 10:08:00,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 455. [2020-09-21 10:08:00,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 455 states. [2020-09-21 10:08:00,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 550 transitions. [2020-09-21 10:08:00,295 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 550 transitions. Word has length 83 [2020-09-21 10:08:00,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:08:00,295 INFO L479 AbstractCegarLoop]: Abstraction has 455 states and 550 transitions. [2020-09-21 10:08:00,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-21 10:08:00,295 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 550 transitions. [2020-09-21 10:08:00,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-09-21 10:08:00,297 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 10:08:00,297 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] [2020-09-21 10:08:00,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 10:08:00,297 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 10:08:00,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 10:08:00,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1113116411, now seen corresponding path program 1 times [2020-09-21 10:08:00,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 10:08:00,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629521479] [2020-09-21 10:08:00,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 10:08:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,762 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:08:00,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 10:08:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 10:08:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 10:08:00,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 10:08:00,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 10:08:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-21 10:08:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 10:08:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 10:08:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-21 10:08:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-21 10:08:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-21 10:08:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-09-21 10:08:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-09-21 10:08:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 10:08:00,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 10:08:00,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629521479] [2020-09-21 10:08:00,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 10:08:00,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-09-21 10:08:00,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064741954] [2020-09-21 10:08:00,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-21 10:08:00,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 10:08:00,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-21 10:08:00,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2020-09-21 10:08:00,950 INFO L87 Difference]: Start difference. First operand 455 states and 550 transitions. Second operand 13 states. [2020-09-21 10:08:01,680 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:08:01,977 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:08:02,255 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:08:03,206 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 10:08:03,986 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:04,382 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:04,721 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:05,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 10:08:05,287 INFO L93 Difference]: Finished difference Result 780 states and 951 transitions. [2020-09-21 10:08:05,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-21 10:08:05,288 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 84 [2020-09-21 10:08:05,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 10:08:05,289 INFO L225 Difference]: With dead ends: 780 [2020-09-21 10:08:05,289 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 10:08:05,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2020-09-21 10:08:05,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 10:08:05,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 10:08:05,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 10:08:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 10:08:05,295 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2020-09-21 10:08:05,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 10:08:05,296 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 10:08:05,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-21 10:08:05,296 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 10:08:05,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 10:08:05,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 10:08:05,300 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 10:08:05,490 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:05,660 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:05,823 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:05,981 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:06,144 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:06,307 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:06,475 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:06,638 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:06,800 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:06,963 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:07,139 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:07,307 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:07,467 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:08,656 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 231 DAG size of output: 213 [2020-09-21 10:08:08,830 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:08,995 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:09,160 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:09,326 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:08:09,476 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:08:09,639 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:09,801 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:09,960 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:10,117 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:10,290 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:10,545 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-09-21 10:08:10,792 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-21 10:08:11,053 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 12 [2020-09-21 10:08:11,212 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 14 [2020-09-21 10:08:11,560 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 189 [2020-09-21 10:08:11,718 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:11,871 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:12,024 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:12,175 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:08:12,331 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:12,494 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:12,654 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:12,811 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:12,967 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:13,143 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:13,295 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:13,446 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:08:13,603 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:13,757 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:13,917 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:14,070 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:14,223 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:14,375 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:14,533 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:14,686 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:14,839 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:14,996 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:15,151 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:15,312 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:15,464 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:16,707 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 242 DAG size of output: 223 [2020-09-21 10:08:16,859 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:17,015 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:17,180 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:08:17,342 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:08:17,504 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:17,661 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:17,825 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:17,990 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:18,142 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:18,295 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:18,451 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:18,607 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:18,768 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:18,921 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:19,077 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:19,232 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:19,386 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:19,535 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 10:08:19,690 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:19,844 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:19,999 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:20,160 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:20,315 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:20,468 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:20,626 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:20,790 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:20,963 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:21,121 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:21,277 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:08:21,437 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:21,591 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:21,746 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:22,985 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 242 DAG size of output: 223 [2020-09-21 10:08:23,138 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:23,293 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:23,451 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:23,606 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:23,771 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:23,928 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:24,085 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:24,237 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:24,389 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:24,548 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:24,725 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-21 10:08:24,884 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:25,036 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:25,187 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 10:08:25,340 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:25,591 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:08:25,839 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 12 [2020-09-21 10:08:25,996 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 14 [2020-09-21 10:08:26,333 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 192 [2020-09-21 10:08:27,323 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 213 [2020-09-21 10:08:27,476 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:27,629 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-21 10:08:27,788 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-21 10:08:27,957 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-21 10:08:28,117 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-21 10:08:28,986 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 22 [2020-09-21 10:08:29,209 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 1 [2020-09-21 10:08:29,429 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 20 [2020-09-21 10:08:29,653 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 20 [2020-09-21 10:08:29,873 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 1 [2020-09-21 10:08:30,157 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 22 [2020-09-21 10:08:30,662 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 25 [2020-09-21 10:08:30,934 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 10:08:31,178 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 1