/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 true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 21:40:39,121 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 21:40:39,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 21:40:39,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 21:40:39,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 21:40:39,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 21:40:39,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 21:40:39,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 21:40:39,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 21:40:39,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 21:40:39,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 21:40:39,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 21:40:39,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 21:40:39,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 21:40:39,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 21:40:39,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 21:40:39,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 21:40:39,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 21:40:39,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 21:40:39,191 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 21:40:39,193 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 21:40:39,194 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 21:40:39,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 21:40:39,195 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 21:40:39,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 21:40:39,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 21:40:39,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 21:40:39,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 21:40:39,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 21:40:39,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 21:40:39,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 21:40:39,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 21:40:39,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 21:40:39,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 21:40:39,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 21:40:39,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 21:40:39,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 21:40:39,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 21:40:39,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 21:40:39,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 21:40:39,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 21:40:39,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 21:40:39,227 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 21:40:39,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 21:40:39,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 21:40:39,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 21:40:39,229 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 21:40:39,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 21:40:39,230 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 21:40:39,230 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 21:40:39,230 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 21:40:39,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 21:40:39,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 21:40:39,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 21:40:39,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 21:40:39,231 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 21:40:39,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 21:40:39,232 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 21:40:39,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 21:40:39,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 21:40:39,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 21:40:39,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 21:40:39,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 21:40:39,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 21:40:39,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 21:40:39,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 21:40:39,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 21:40:39,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 21:40:39,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 21:40:39,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 21:40:39,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 21:40:39,234 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 -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=NARROWEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=NARROWEST; [2020-08-18 21:40:39,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 21:40:39,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 21:40:39,518 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 21:40:39,519 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 21:40:39,519 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 21:40:39,520 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-08-18 21:40:39,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed83b83c7/ea56bd4061d343ae96df7d267832dc65/FLAG635a5c091 [2020-08-18 21:40:40,084 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 21:40:40,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product37.cil.c [2020-08-18 21:40:40,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed83b83c7/ea56bd4061d343ae96df7d267832dc65/FLAG635a5c091 [2020-08-18 21:40:40,325 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ed83b83c7/ea56bd4061d343ae96df7d267832dc65 [2020-08-18 21:40:40,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 21:40:40,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 21:40:40,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 21:40:40,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 21:40:40,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 21:40:40,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:40:40" (1/1) ... [2020-08-18 21:40:40,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a8795c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:40:40, skipping insertion in model container [2020-08-18 21:40:40,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:40:40" (1/1) ... [2020-08-18 21:40:40,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 21:40:40,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 21:40:40,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:40:40,684 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 21:40:40,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:40:40,894 INFO L208 MainTranslator]: Completed translation [2020-08-18 21:40:40,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:40:40 WrapperNode [2020-08-18 21:40:40,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 21:40:40,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 21:40:40,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 21:40:40,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 21:40:40,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:40:40" (1/1) ... [2020-08-18 21:40:40,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:40:40" (1/1) ... [2020-08-18 21:40:40,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:40:40" (1/1) ... [2020-08-18 21:40:40,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:40:40" (1/1) ... [2020-08-18 21:40:40,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:40:40" (1/1) ... [2020-08-18 21:40:40,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:40:40" (1/1) ... [2020-08-18 21:40:40,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:40:40" (1/1) ... [2020-08-18 21:40:40,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 21:40:40,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 21:40:40,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 21:40:40,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 21:40:40,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:40:40" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 21:40:41,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 21:40:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 21:40:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-18 21:40:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-18 21:40:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-18 21:40:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-18 21:40:41,049 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-18 21:40:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-18 21:40:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-18 21:40:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-18 21:40:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-18 21:40:41,050 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-18 21:40:41,051 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-18 21:40:41,051 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 21:40:41,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-08-18 21:40:41,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-18 21:40:41,051 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-18 21:40:41,051 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-18 21:40:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-18 21:40:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-18 21:40:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-18 21:40:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-18 21:40:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-18 21:40:41,052 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-18 21:40:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-18 21:40:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-18 21:40:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-18 21:40:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-18 21:40:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-18 21:40:41,053 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-18 21:40:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-18 21:40:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-18 21:40:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-18 21:40:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-18 21:40:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-18 21:40:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-18 21:40:41,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-18 21:40:41,055 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-18 21:40:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 21:40:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 21:40:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-18 21:40:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-18 21:40:41,055 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 21:40:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 21:40:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-18 21:40:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 21:40:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 21:40:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 21:40:41,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 21:40:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-18 21:40:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 21:40:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-18 21:40:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-18 21:40:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 21:40:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-18 21:40:41,057 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-18 21:40:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-18 21:40:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-18 21:40:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-18 21:40:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-18 21:40:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-18 21:40:41,058 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-18 21:40:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-18 21:40:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-18 21:40:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-18 21:40:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-18 21:40:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-18 21:40:41,059 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-18 21:40:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-18 21:40:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-18 21:40:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 21:40:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-18 21:40:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-18 21:40:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-18 21:40:41,060 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-08-18 21:40:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-18 21:40:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-18 21:40:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-18 21:40:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-18 21:40:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-18 21:40:41,061 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-18 21:40:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-18 21:40:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-18 21:40:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-18 21:40:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-18 21:40:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-18 21:40:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-18 21:40:41,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 21:40:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-18 21:40:41,063 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 21:40:42,169 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 21:40:42,169 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-18 21:40:42,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:40:42 BoogieIcfgContainer [2020-08-18 21:40:42,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 21:40:42,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 21:40:42,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 21:40:42,184 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 21:40:42,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 09:40:40" (1/3) ... [2020-08-18 21:40:42,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb8ac93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:40:42, skipping insertion in model container [2020-08-18 21:40:42,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:40:40" (2/3) ... [2020-08-18 21:40:42,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb8ac93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:40:42, skipping insertion in model container [2020-08-18 21:40:42,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:40:42" (3/3) ... [2020-08-18 21:40:42,187 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product37.cil.c [2020-08-18 21:40:42,194 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 21:40:42,202 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 21:40:42,214 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 21:40:42,234 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 21:40:42,235 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 21:40:42,235 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 21:40:42,235 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 21:40:42,235 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 21:40:42,236 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 21:40:42,236 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 21:40:42,236 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 21:40:42,257 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-08-18 21:40:42,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-18 21:40:42,267 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:40:42,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:40:42,268 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:40:42,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:40:42,274 INFO L82 PathProgramCache]: Analyzing trace with hash -749162492, now seen corresponding path program 1 times [2020-08-18 21:40:42,283 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:40:42,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905736793] [2020-08-18 21:40:42,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:40:42,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:42,895 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:40:42,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:40:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:42,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:40:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:42,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:40:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:42,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:40:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:42,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:40:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:42,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-08-18 21:40:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:42,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-08-18 21:40:42,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:42,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:40:42,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905736793] [2020-08-18 21:40:42,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:40:42,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 21:40:42,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393522580] [2020-08-18 21:40:42,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 21:40:42,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:40:43,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 21:40:43,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:40:43,016 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-08-18 21:40:44,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:40:44,083 INFO L93 Difference]: Finished difference Result 287 states and 378 transitions. [2020-08-18 21:40:44,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 21:40:44,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-08-18 21:40:44,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:40:44,103 INFO L225 Difference]: With dead ends: 287 [2020-08-18 21:40:44,104 INFO L226 Difference]: Without dead ends: 155 [2020-08-18 21:40:44,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:40:44,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-08-18 21:40:44,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 123. [2020-08-18 21:40:44,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-08-18 21:40:44,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 145 transitions. [2020-08-18 21:40:44,224 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 145 transitions. Word has length 46 [2020-08-18 21:40:44,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:40:44,225 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 145 transitions. [2020-08-18 21:40:44,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 21:40:44,226 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 145 transitions. [2020-08-18 21:40:44,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-18 21:40:44,232 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:40:44,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:40:44,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 21:40:44,233 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:40:44,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:40:44,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1435333190, now seen corresponding path program 1 times [2020-08-18 21:40:44,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:40:44,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1392020359] [2020-08-18 21:40:44,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:40:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:44,615 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:40:44,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:40:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:44,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:40:44,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:44,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:40:44,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:44,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:40:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:44,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:40:44,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:44,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-08-18 21:40:44,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:44,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 21:40:44,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:44,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:40:44,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1392020359] [2020-08-18 21:40:44,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:40:44,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 21:40:44,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134963927] [2020-08-18 21:40:44,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 21:40:44,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:40:44,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 21:40:44,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 21:40:44,663 INFO L87 Difference]: Start difference. First operand 123 states and 145 transitions. Second operand 4 states. [2020-08-18 21:40:45,024 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:40:45,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:40:45,724 INFO L93 Difference]: Finished difference Result 220 states and 269 transitions. [2020-08-18 21:40:45,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 21:40:45,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-08-18 21:40:45,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:40:45,730 INFO L225 Difference]: With dead ends: 220 [2020-08-18 21:40:45,730 INFO L226 Difference]: Without dead ends: 139 [2020-08-18 21:40:45,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-18 21:40:45,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-08-18 21:40:45,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 114. [2020-08-18 21:40:45,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-08-18 21:40:45,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 133 transitions. [2020-08-18 21:40:45,781 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 133 transitions. Word has length 47 [2020-08-18 21:40:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:40:45,781 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 133 transitions. [2020-08-18 21:40:45,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 21:40:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 133 transitions. [2020-08-18 21:40:45,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-18 21:40:45,790 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:40:45,791 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] [2020-08-18 21:40:45,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 21:40:45,791 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:40:45,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:40:45,792 INFO L82 PathProgramCache]: Analyzing trace with hash 325618258, now seen corresponding path program 1 times [2020-08-18 21:40:45,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:40:45,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [255601101] [2020-08-18 21:40:45,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:40:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:46,169 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:40:46,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:40:46,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:46,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:40:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:46,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:40:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:46,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:40:46,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:46,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:40:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:46,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-18 21:40:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:46,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-08-18 21:40:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:46,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:40:46,231 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [255601101] [2020-08-18 21:40:46,231 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:40:46,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 21:40:46,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55235612] [2020-08-18 21:40:46,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 21:40:46,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:40:46,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 21:40:46,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 21:40:46,233 INFO L87 Difference]: Start difference. First operand 114 states and 133 transitions. Second operand 8 states. [2020-08-18 21:40:46,550 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 21:40:46,834 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:40:47,096 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:40:47,313 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:40:48,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:40:48,362 INFO L93 Difference]: Finished difference Result 229 states and 283 transitions. [2020-08-18 21:40:48,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 21:40:48,362 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-18 21:40:48,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:40:48,364 INFO L225 Difference]: With dead ends: 229 [2020-08-18 21:40:48,365 INFO L226 Difference]: Without dead ends: 139 [2020-08-18 21:40:48,366 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-18 21:40:48,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-08-18 21:40:48,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 114. [2020-08-18 21:40:48,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-08-18 21:40:48,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 132 transitions. [2020-08-18 21:40:48,398 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 132 transitions. Word has length 51 [2020-08-18 21:40:48,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:40:48,399 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 132 transitions. [2020-08-18 21:40:48,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 21:40:48,399 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 132 transitions. [2020-08-18 21:40:48,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-08-18 21:40:48,400 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:40:48,400 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] [2020-08-18 21:40:48,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 21:40:48,401 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:40:48,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:40:48,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1759847866, now seen corresponding path program 1 times [2020-08-18 21:40:48,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:40:48,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47012081] [2020-08-18 21:40:48,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:40:48,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:48,638 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:40:48,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:40:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:48,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:40:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:48,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:40:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:48,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:40:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:48,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:40:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:48,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-18 21:40:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:48,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:40:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:48,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:40:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:48,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-08-18 21:40:48,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:48,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-08-18 21:40:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:48,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:40:48,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47012081] [2020-08-18 21:40:48,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:40:48,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 21:40:48,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934437632] [2020-08-18 21:40:48,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 21:40:48,717 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:40:48,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 21:40:48,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-18 21:40:48,718 INFO L87 Difference]: Start difference. First operand 114 states and 132 transitions. Second operand 6 states. [2020-08-18 21:40:49,070 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 21:40:50,094 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:40:50,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:40:50,661 INFO L93 Difference]: Finished difference Result 321 states and 399 transitions. [2020-08-18 21:40:50,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 21:40:50,662 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-08-18 21:40:50,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:40:50,665 INFO L225 Difference]: With dead ends: 321 [2020-08-18 21:40:50,666 INFO L226 Difference]: Without dead ends: 231 [2020-08-18 21:40:50,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-08-18 21:40:50,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-08-18 21:40:50,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 190. [2020-08-18 21:40:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-08-18 21:40:50,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 217 transitions. [2020-08-18 21:40:50,708 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 217 transitions. Word has length 64 [2020-08-18 21:40:50,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:40:50,709 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 217 transitions. [2020-08-18 21:40:50,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 21:40:50,709 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 217 transitions. [2020-08-18 21:40:50,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-08-18 21:40:50,710 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:40:50,711 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] [2020-08-18 21:40:50,711 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 21:40:50,711 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:40:50,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:40:50,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1017680522, now seen corresponding path program 1 times [2020-08-18 21:40:50,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:40:50,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697020046] [2020-08-18 21:40:50,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:40:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:50,996 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:40:50,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:40:51,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:51,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:40:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:51,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:40:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:51,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:40:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:51,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:40:51,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:51,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-08-18 21:40:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:51,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:40:51,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:51,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:40:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:51,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:40:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:51,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:40:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:51,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-18 21:40:51,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:51,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-18 21:40:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:51,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:40:51,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697020046] [2020-08-18 21:40:51,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:40:51,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-18 21:40:51,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721749356] [2020-08-18 21:40:51,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-18 21:40:51,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:40:51,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-18 21:40:51,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-18 21:40:51,125 INFO L87 Difference]: Start difference. First operand 190 states and 217 transitions. Second operand 8 states. [2020-08-18 21:40:51,490 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 21:40:52,481 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:40:52,747 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:40:52,968 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:40:53,179 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 21:40:53,443 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:40:54,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:40:54,357 INFO L93 Difference]: Finished difference Result 565 states and 701 transitions. [2020-08-18 21:40:54,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 21:40:54,357 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 78 [2020-08-18 21:40:54,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:40:54,362 INFO L225 Difference]: With dead ends: 565 [2020-08-18 21:40:54,362 INFO L226 Difference]: Without dead ends: 399 [2020-08-18 21:40:54,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-18 21:40:54,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-08-18 21:40:54,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 335. [2020-08-18 21:40:54,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-08-18 21:40:54,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 384 transitions. [2020-08-18 21:40:54,445 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 384 transitions. Word has length 78 [2020-08-18 21:40:54,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:40:54,445 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 384 transitions. [2020-08-18 21:40:54,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-18 21:40:54,446 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 384 transitions. [2020-08-18 21:40:54,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-08-18 21:40:54,447 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:40:54,447 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] [2020-08-18 21:40:54,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 21:40:54,448 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:40:54,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:40:54,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1476513266, now seen corresponding path program 1 times [2020-08-18 21:40:54,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:40:54,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1233361005] [2020-08-18 21:40:54,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:40:54,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,698 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:40:54,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:40:54,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:40:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:40:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:40:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:40:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-18 21:40:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 21:40:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:40:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:40:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:40:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:40:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-08-18 21:40:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-08-18 21:40:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:54,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:40:54,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1233361005] [2020-08-18 21:40:54,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:40:54,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 21:40:54,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563399689] [2020-08-18 21:40:54,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 21:40:54,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:40:54,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 21:40:54,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 21:40:54,795 INFO L87 Difference]: Start difference. First operand 335 states and 384 transitions. Second operand 9 states. [2020-08-18 21:40:55,155 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 21:40:56,129 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:40:56,337 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 21:40:56,579 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:40:56,815 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:40:57,080 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:40:57,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:40:57,952 INFO L93 Difference]: Finished difference Result 438 states and 552 transitions. [2020-08-18 21:40:57,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-18 21:40:57,953 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 82 [2020-08-18 21:40:57,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:40:57,957 INFO L225 Difference]: With dead ends: 438 [2020-08-18 21:40:57,958 INFO L226 Difference]: Without dead ends: 435 [2020-08-18 21:40:57,958 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-08-18 21:40:57,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2020-08-18 21:40:58,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 335. [2020-08-18 21:40:58,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-08-18 21:40:58,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 383 transitions. [2020-08-18 21:40:58,031 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 383 transitions. Word has length 82 [2020-08-18 21:40:58,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:40:58,032 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 383 transitions. [2020-08-18 21:40:58,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 21:40:58,032 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 383 transitions. [2020-08-18 21:40:58,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-18 21:40:58,034 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:40:58,034 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] [2020-08-18 21:40:58,034 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 21:40:58,034 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:40:58,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:40:58,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1573868364, now seen corresponding path program 1 times [2020-08-18 21:40:58,035 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:40:58,035 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410067426] [2020-08-18 21:40:58,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:40:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,288 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:40:58,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:40:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:40:58,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:40:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:40:58,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:40:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-18 21:40:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 21:40:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:40:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:40:58,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:40:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:40:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-18 21:40:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-18 21:40:58,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:40:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:40:58,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410067426] [2020-08-18 21:40:58,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:40:58,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-18 21:40:58,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685579495] [2020-08-18 21:40:58,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-18 21:40:58,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:40:58,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-18 21:40:58,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-08-18 21:40:58,410 INFO L87 Difference]: Start difference. First operand 335 states and 383 transitions. Second operand 9 states. [2020-08-18 21:40:59,514 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-18 21:40:59,743 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-18 21:40:59,968 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:41:00,187 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:41:01,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:41:01,063 INFO L93 Difference]: Finished difference Result 750 states and 926 transitions. [2020-08-18 21:41:01,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-18 21:41:01,063 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-08-18 21:41:01,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:41:01,067 INFO L225 Difference]: With dead ends: 750 [2020-08-18 21:41:01,068 INFO L226 Difference]: Without dead ends: 439 [2020-08-18 21:41:01,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-08-18 21:41:01,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-08-18 21:41:01,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 345. [2020-08-18 21:41:01,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-08-18 21:41:01,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 393 transitions. [2020-08-18 21:41:01,138 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 393 transitions. Word has length 83 [2020-08-18 21:41:01,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:41:01,139 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 393 transitions. [2020-08-18 21:41:01,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-18 21:41:01,139 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 393 transitions. [2020-08-18 21:41:01,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-18 21:41:01,140 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:41:01,141 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] [2020-08-18 21:41:01,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-18 21:41:01,141 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:41:01,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:41:01,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1596500618, now seen corresponding path program 1 times [2020-08-18 21:41:01,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:41:01,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1006622107] [2020-08-18 21:41:01,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:41:01,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,367 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:41:01,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:41:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:41:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:41:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:41:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:41:01,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-18 21:41:01,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 21:41:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:41:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:41:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:41:01,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:41:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-18 21:41:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-18 21:41:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:41:01,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1006622107] [2020-08-18 21:41:01,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:41:01,473 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-18 21:41:01,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129873847] [2020-08-18 21:41:01,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-18 21:41:01,474 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:41:01,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-18 21:41:01,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-08-18 21:41:01,474 INFO L87 Difference]: Start difference. First operand 345 states and 393 transitions. Second operand 11 states. [2020-08-18 21:41:01,936 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:41:02,163 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:41:02,375 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:41:02,919 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:41:03,155 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:41:03,379 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-18 21:41:04,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:41:04,417 INFO L93 Difference]: Finished difference Result 774 states and 966 transitions. [2020-08-18 21:41:04,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-18 21:41:04,418 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 83 [2020-08-18 21:41:04,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:41:04,422 INFO L225 Difference]: With dead ends: 774 [2020-08-18 21:41:04,422 INFO L226 Difference]: Without dead ends: 453 [2020-08-18 21:41:04,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-08-18 21:41:04,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2020-08-18 21:41:04,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 353. [2020-08-18 21:41:04,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-08-18 21:41:04,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 401 transitions. [2020-08-18 21:41:04,488 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 401 transitions. Word has length 83 [2020-08-18 21:41:04,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:41:04,489 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 401 transitions. [2020-08-18 21:41:04,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-18 21:41:04,489 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 401 transitions. [2020-08-18 21:41:04,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-08-18 21:41:04,491 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:41:04,491 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] [2020-08-18 21:41:04,491 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-18 21:41:04,491 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:41:04,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:41:04,491 INFO L82 PathProgramCache]: Analyzing trace with hash -1672974679, now seen corresponding path program 1 times [2020-08-18 21:41:04,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:41:04,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433223114] [2020-08-18 21:41:04,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:41:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,734 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-18 21:41:04,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:41:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-08-18 21:41:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-18 21:41:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-08-18 21:41:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-08-18 21:41:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-18 21:41:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-08-18 21:41:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:41:04,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-18 21:41:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-08-18 21:41:04,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-08-18 21:41:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-08-18 21:41:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-08-18 21:41:04,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:41:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:41:04,873 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433223114] [2020-08-18 21:41:04,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:41:04,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-18 21:41:04,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3858352] [2020-08-18 21:41:04,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 21:41:04,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:41:04,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 21:41:04,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-18 21:41:04,875 INFO L87 Difference]: Start difference. First operand 353 states and 401 transitions. Second operand 7 states. [2020-08-18 21:41:05,196 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 21:41:05,653 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-18 21:41:07,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:41:07,383 INFO L93 Difference]: Finished difference Result 1077 states and 1388 transitions. [2020-08-18 21:41:07,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-18 21:41:07,384 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2020-08-18 21:41:07,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:41:07,389 INFO L225 Difference]: With dead ends: 1077 [2020-08-18 21:41:07,390 INFO L226 Difference]: Without dead ends: 748 [2020-08-18 21:41:07,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-08-18 21:41:07,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-08-18 21:41:07,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 649. [2020-08-18 21:41:07,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-08-18 21:41:07,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 771 transitions. [2020-08-18 21:41:07,529 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 771 transitions. Word has length 83 [2020-08-18 21:41:07,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:41:07,531 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 771 transitions. [2020-08-18 21:41:07,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 21:41:07,531 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 771 transitions. [2020-08-18 21:41:07,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-08-18 21:41:07,535 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:41:07,536 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:41:07,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-18 21:41:07,536 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:41:07,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:41:07,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1457224847, now seen corresponding path program 1 times [2020-08-18 21:41:07,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:41:07,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907916832] [2020-08-18 21:41:07,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:41:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 21:41:07,600 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 21:41:07,601 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 21:41:07,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-18 21:41:07,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 09:41:07 BoogieIcfgContainer [2020-08-18 21:41:07,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 21:41:07,645 INFO L168 Benchmark]: Toolchain (without parser) took 27306.02 ms. Allocated memory was 140.5 MB in the beginning and 626.5 MB in the end (delta: 486.0 MB). Free memory was 102.5 MB in the beginning and 209.1 MB in the end (delta: -106.6 MB). Peak memory consumption was 379.4 MB. Max. memory is 7.1 GB. [2020-08-18 21:41:07,646 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 21:41:07,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.43 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 174.7 MB in the end (delta: -72.4 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2020-08-18 21:41:07,653 INFO L168 Benchmark]: Boogie Preprocessor took 88.58 ms. Allocated memory is still 204.5 MB. Free memory was 174.7 MB in the beginning and 170.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-08-18 21:41:07,654 INFO L168 Benchmark]: RCFGBuilder took 1192.50 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 170.3 MB in the beginning and 199.1 MB in the end (delta: -28.8 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-08-18 21:41:07,658 INFO L168 Benchmark]: TraceAbstraction took 25459.27 ms. Allocated memory was 237.0 MB in the beginning and 626.5 MB in the end (delta: 389.5 MB). Free memory was 199.1 MB in the beginning and 209.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 379.6 MB. Max. memory is 7.1 GB. [2020-08-18 21:41:07,663 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 558.43 ms. Allocated memory was 140.5 MB in the beginning and 204.5 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 174.7 MB in the end (delta: -72.4 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.58 ms. Allocated memory is still 204.5 MB. Free memory was 174.7 MB in the beginning and 170.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1192.50 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 170.3 MB in the beginning and 199.1 MB in the end (delta: -28.8 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25459.27 ms. Allocated memory was 237.0 MB in the beginning and 626.5 MB in the end (delta: 389.5 MB). Free memory was 199.1 MB in the beginning and 209.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 379.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 543]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L588] int pumpRunning = 0; [L589] int systemActive = 1; [L832] int waterLevel = 1; [L833] int methaneLevelCritical = 0; [L487] int retValue_acc ; [L488] int tmp ; [L492] FCALL select_helpers() [L493] FCALL select_features() [L494] CALL, EXPR valid_product() [L574] int retValue_acc ; [L577] retValue_acc = 1 [L578] return (retValue_acc); [L494] RET, EXPR valid_product() [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) [L498] FCALL setup() [L499] CALL runTest() [L478] CALL test() [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 [L776] COND TRUE 1 [L778] COND TRUE splverifierCounter < 4 [L784] tmp = __VERIFIER_nondet_int() [L786] COND TRUE \read(tmp) [L788] CALL waterRise() [L850] COND TRUE waterLevel < 2 [L851] waterLevel = waterLevel + 1 [L788] RET waterRise() [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND TRUE \read(tmp___0) [L798] CALL changeMethaneLevel() [L862] COND FALSE !(\read(methaneLevelCritical)) [L865] methaneLevelCritical = 1 [L798] RET changeMethaneLevel() [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___2) [L819] CALL timeShift() [L595] COND FALSE !(\read(pumpRunning)) [L602] COND TRUE \read(systemActive) [L604] CALL processEnvironment() [L650] int tmp ; [L653] COND FALSE !(\read(pumpRunning)) [L668] CALL processEnvironment__wrappee__highWaterSensor() [L624] int tmp ; [L627] COND TRUE ! pumpRunning [L629] CALL, EXPR isHighWaterLevel() [L747] int retValue_acc ; [L748] int tmp ; [L749] int tmp___0 ; [L753] CALL, EXPR isHighWaterSensorDry() [L912] int retValue_acc ; [L915] COND FALSE !(waterLevel < 2) [L919] retValue_acc = 0 [L920] return (retValue_acc); [L753] RET, EXPR isHighWaterSensorDry() [L753] tmp = isHighWaterSensorDry() [L755] COND FALSE !(\read(tmp)) [L758] tmp___0 = 1 [L760] retValue_acc = tmp___0 [L761] return (retValue_acc); [L629] RET, EXPR isHighWaterLevel() [L629] tmp = isHighWaterLevel() [L631] COND TRUE \read(tmp) [L633] CALL activatePump() [L678] pumpRunning = 1 [L633] RET activatePump() [L668] RET processEnvironment__wrappee__highWaterSensor() [L604] RET processEnvironment() [L610] CALL __utac_acc__Specification1_spec__1() [L514] int tmp ; [L515] int tmp___0 ; [L519] CALL, EXPR isMethaneLevelCritical() [L871] int retValue_acc ; [L874] retValue_acc = methaneLevelCritical [L875] return (retValue_acc); [L519] RET, EXPR isMethaneLevelCritical() [L519] tmp = isMethaneLevelCritical() [L521] COND TRUE \read(tmp) [L523] CALL, EXPR isPumpRunning() [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); [L523] RET, EXPR isPumpRunning() [L523] tmp___0 = isPumpRunning() [L525] COND TRUE \read(tmp___0) [L527] CALL __automaton_fail() [L543] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 225 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 25.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 20.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1006 SDtfs, 1711 SDslu, 938 SDs, 0 SdLazy, 4719 SolverSat, 1069 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 219 SyntacticMatches, 4 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=649occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 580 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 704 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 608 ConstructedInterpolants, 0 QuantifiedInterpolants, 186785 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...