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 -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:24,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:24,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:24,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:24,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:24,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:24,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:24,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:24,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:24,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:24,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:24,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:24,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:24,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:24,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:24,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:24,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:24,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:24,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:24,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:24,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:24,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:24,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:24,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:24,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:24,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:24,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:24,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:24,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:24,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:24,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:24,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:24,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:24,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:24,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:24,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:24,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:24,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:24,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:24,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:24,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:24,305 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:31:24,319 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:24,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:24,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:24,320 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:24,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:24,321 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:24,321 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:24,322 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:24,322 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:24,322 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:24,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:24,323 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:24,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:24,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:24,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:24,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:24,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:24,324 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:24,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:24,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:24,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:24,325 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:24,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:24,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:24,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:24,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:24,326 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:24,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:24,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:24,326 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:24,355 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:24,367 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:24,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:24,372 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:24,373 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:24,374 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c [2019-09-20 13:31:24,435 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b99c082a0/a40e375d36944eedaf28602edcfd59a2/FLAG2300f4a31 [2019-09-20 13:31:24,980 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:24,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product33.cil.c [2019-09-20 13:31:25,002 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b99c082a0/a40e375d36944eedaf28602edcfd59a2/FLAG2300f4a31 [2019-09-20 13:31:25,263 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b99c082a0/a40e375d36944eedaf28602edcfd59a2 [2019-09-20 13:31:25,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:25,276 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:25,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:25,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:25,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:25,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:25" (1/1) ... [2019-09-20 13:31:25,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f315885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:25, skipping insertion in model container [2019-09-20 13:31:25,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:25" (1/1) ... [2019-09-20 13:31:25,295 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:25,356 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:25,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:25,963 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:26,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:26,088 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:26,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26 WrapperNode [2019-09-20 13:31:26,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:26,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:26,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:26,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:26,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... [2019-09-20 13:31:26,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:26,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:26,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:26,189 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:26,190 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-09-20 13:31:26,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:26,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:26,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:26,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:26,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:26,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:26,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:26,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:26,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:26,251 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:26,251 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:26,251 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:26,252 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:26,253 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:26,253 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:26,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:26,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:26,254 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:26,254 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:26,254 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:26,255 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:26,256 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:26,257 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:26,258 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:26,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:26,260 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:26,261 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:26,261 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:26,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:26,263 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:26,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:26,265 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:26,266 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:27,362 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:27,363 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:27,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:27 BoogieIcfgContainer [2019-09-20 13:31:27,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:27,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:27,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:27,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:27,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:25" (1/3) ... [2019-09-20 13:31:27,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc0883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:27, skipping insertion in model container [2019-09-20 13:31:27,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:26" (2/3) ... [2019-09-20 13:31:27,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bc0883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:27, skipping insertion in model container [2019-09-20 13:31:27,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:27" (3/3) ... [2019-09-20 13:31:27,374 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product33.cil.c [2019-09-20 13:31:27,386 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:27,394 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:27,412 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:27,439 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:27,440 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:27,440 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:27,440 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:27,441 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:27,441 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:27,441 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:27,441 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2019-09-20 13:31:27,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:27,474 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:27,476 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:27,478 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:27,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:27,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1965832149, now seen corresponding path program 1 times [2019-09-20 13:31:27,487 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:27,544 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:27,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:27,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:27,545 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:27,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:27,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:27,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:27,909 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:27,915 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:27,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:27,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:27,933 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 2 states. [2019-09-20 13:31:27,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:27,962 INFO L93 Difference]: Finished difference Result 126 states and 147 transitions. [2019-09-20 13:31:27,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:27,964 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:27,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:27,976 INFO L225 Difference]: With dead ends: 126 [2019-09-20 13:31:27,976 INFO L226 Difference]: Without dead ends: 115 [2019-09-20 13:31:27,978 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:27,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-09-20 13:31:28,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-09-20 13:31:28,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-09-20 13:31:28,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2019-09-20 13:31:28,027 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 59 [2019-09-20 13:31:28,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:28,027 INFO L475 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2019-09-20 13:31:28,028 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:28,028 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2019-09-20 13:31:28,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:28,032 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:28,032 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:28,032 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:28,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:28,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1025601363, now seen corresponding path program 1 times [2019-09-20 13:31:28,033 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:28,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:28,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:28,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:28,036 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:28,181 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:28,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:28,181 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:28,183 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:28,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:28,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:28,184 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 3 states. [2019-09-20 13:31:28,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:28,198 INFO L93 Difference]: Finished difference Result 106 states and 123 transitions. [2019-09-20 13:31:28,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:28,199 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:28,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:28,201 INFO L225 Difference]: With dead ends: 106 [2019-09-20 13:31:28,201 INFO L226 Difference]: Without dead ends: 106 [2019-09-20 13:31:28,202 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:28,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-09-20 13:31:28,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-09-20 13:31:28,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-09-20 13:31:28,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2019-09-20 13:31:28,216 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 60 [2019-09-20 13:31:28,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:28,217 INFO L475 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2019-09-20 13:31:28,217 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:28,217 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2019-09-20 13:31:28,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:31:28,221 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:28,221 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:28,223 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:28,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:28,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1650494658, now seen corresponding path program 1 times [2019-09-20 13:31:28,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:28,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:28,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:28,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:28,228 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:28,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:28,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:28,390 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:28,391 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:28,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:28,392 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:28,392 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 3 states. [2019-09-20 13:31:28,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:28,411 INFO L93 Difference]: Finished difference Result 106 states and 122 transitions. [2019-09-20 13:31:28,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:28,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-09-20 13:31:28,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:28,415 INFO L225 Difference]: With dead ends: 106 [2019-09-20 13:31:28,415 INFO L226 Difference]: Without dead ends: 106 [2019-09-20 13:31:28,416 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:28,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2019-09-20 13:31:28,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2019-09-20 13:31:28,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2019-09-20 13:31:28,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 122 transitions. [2019-09-20 13:31:28,432 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 122 transitions. Word has length 64 [2019-09-20 13:31:28,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:28,435 INFO L475 AbstractCegarLoop]: Abstraction has 106 states and 122 transitions. [2019-09-20 13:31:28,435 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:28,435 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 122 transitions. [2019-09-20 13:31:28,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-20 13:31:28,440 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:28,440 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:28,441 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:28,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:28,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1464836383, now seen corresponding path program 1 times [2019-09-20 13:31:28,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:28,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:28,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:28,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:28,446 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:28,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:28,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:28,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:28,563 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:31:28,563 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:28,564 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:31:28,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:31:28,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:28,566 INFO L87 Difference]: Start difference. First operand 106 states and 122 transitions. Second operand 5 states. [2019-09-20 13:31:29,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:29,149 INFO L93 Difference]: Finished difference Result 196 states and 231 transitions. [2019-09-20 13:31:29,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:29,149 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-09-20 13:31:29,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:29,154 INFO L225 Difference]: With dead ends: 196 [2019-09-20 13:31:29,154 INFO L226 Difference]: Without dead ends: 196 [2019-09-20 13:31:29,155 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:29,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2019-09-20 13:31:29,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 178. [2019-09-20 13:31:29,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-09-20 13:31:29,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 207 transitions. [2019-09-20 13:31:29,182 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 207 transitions. Word has length 72 [2019-09-20 13:31:29,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:29,182 INFO L475 AbstractCegarLoop]: Abstraction has 178 states and 207 transitions. [2019-09-20 13:31:29,183 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:31:29,183 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 207 transitions. [2019-09-20 13:31:29,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-09-20 13:31:29,188 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:29,191 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:29,192 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:29,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:29,192 INFO L82 PathProgramCache]: Analyzing trace with hash 402114491, now seen corresponding path program 1 times [2019-09-20 13:31:29,192 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:29,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:29,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:29,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:29,198 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:29,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:29,386 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:29,387 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:29,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:29,387 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:29,390 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:29,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:29,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:29,391 INFO L87 Difference]: Start difference. First operand 178 states and 207 transitions. Second operand 7 states. [2019-09-20 13:31:30,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:30,049 INFO L93 Difference]: Finished difference Result 195 states and 230 transitions. [2019-09-20 13:31:30,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:31:30,050 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 86 [2019-09-20 13:31:30,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:30,053 INFO L225 Difference]: With dead ends: 195 [2019-09-20 13:31:30,053 INFO L226 Difference]: Without dead ends: 195 [2019-09-20 13:31:30,054 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:31:30,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2019-09-20 13:31:30,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 177. [2019-09-20 13:31:30,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2019-09-20 13:31:30,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 204 transitions. [2019-09-20 13:31:30,072 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 204 transitions. Word has length 86 [2019-09-20 13:31:30,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:30,073 INFO L475 AbstractCegarLoop]: Abstraction has 177 states and 204 transitions. [2019-09-20 13:31:30,073 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:30,073 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 204 transitions. [2019-09-20 13:31:30,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-20 13:31:30,076 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:30,077 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:30,079 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:30,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:30,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1072290173, now seen corresponding path program 1 times [2019-09-20 13:31:30,080 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:30,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:30,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:30,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:30,087 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:30,225 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:30,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:30,226 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:31:30,226 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:30,227 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:31:30,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:31:30,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:31:30,227 INFO L87 Difference]: Start difference. First operand 177 states and 204 transitions. Second operand 6 states. [2019-09-20 13:31:30,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:30,258 INFO L93 Difference]: Finished difference Result 182 states and 209 transitions. [2019-09-20 13:31:30,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:30,258 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-09-20 13:31:30,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:30,263 INFO L225 Difference]: With dead ends: 182 [2019-09-20 13:31:30,263 INFO L226 Difference]: Without dead ends: 182 [2019-09-20 13:31:30,264 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:30,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-09-20 13:31:30,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2019-09-20 13:31:30,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2019-09-20 13:31:30,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 209 transitions. [2019-09-20 13:31:30,284 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 209 transitions. Word has length 87 [2019-09-20 13:31:30,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:30,285 INFO L475 AbstractCegarLoop]: Abstraction has 182 states and 209 transitions. [2019-09-20 13:31:30,285 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:31:30,285 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 209 transitions. [2019-09-20 13:31:30,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-20 13:31:30,288 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:30,288 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:30,288 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:30,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:30,289 INFO L82 PathProgramCache]: Analyzing trace with hash 313913221, now seen corresponding path program 1 times [2019-09-20 13:31:30,289 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:30,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:30,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:30,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:30,295 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:30,404 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:30,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:30,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:31:30,405 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:30,407 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:31:30,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:31:30,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:30,408 INFO L87 Difference]: Start difference. First operand 182 states and 209 transitions. Second operand 8 states. [2019-09-20 13:31:30,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:30,441 INFO L93 Difference]: Finished difference Result 189 states and 216 transitions. [2019-09-20 13:31:30,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:30,445 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 87 [2019-09-20 13:31:30,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:30,447 INFO L225 Difference]: With dead ends: 189 [2019-09-20 13:31:30,447 INFO L226 Difference]: Without dead ends: 189 [2019-09-20 13:31:30,449 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:30,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2019-09-20 13:31:30,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 186. [2019-09-20 13:31:30,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2019-09-20 13:31:30,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 213 transitions. [2019-09-20 13:31:30,463 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 213 transitions. Word has length 87 [2019-09-20 13:31:30,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:30,464 INFO L475 AbstractCegarLoop]: Abstraction has 186 states and 213 transitions. [2019-09-20 13:31:30,464 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:31:30,464 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 213 transitions. [2019-09-20 13:31:30,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-20 13:31:30,465 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:30,465 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:30,466 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:30,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:30,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1869763706, now seen corresponding path program 1 times [2019-09-20 13:31:30,466 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:30,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:30,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:30,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:30,469 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:30,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:30,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:30,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:31:30,544 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:30,544 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:31:30,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:31:30,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:30,545 INFO L87 Difference]: Start difference. First operand 186 states and 213 transitions. Second operand 4 states. [2019-09-20 13:31:30,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:30,787 INFO L93 Difference]: Finished difference Result 376 states and 448 transitions. [2019-09-20 13:31:30,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:31:30,789 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 87 [2019-09-20 13:31:30,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:30,796 INFO L225 Difference]: With dead ends: 376 [2019-09-20 13:31:30,797 INFO L226 Difference]: Without dead ends: 376 [2019-09-20 13:31:30,800 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:30,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2019-09-20 13:31:30,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 367. [2019-09-20 13:31:30,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2019-09-20 13:31:30,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 431 transitions. [2019-09-20 13:31:30,837 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 431 transitions. Word has length 87 [2019-09-20 13:31:30,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:30,838 INFO L475 AbstractCegarLoop]: Abstraction has 367 states and 431 transitions. [2019-09-20 13:31:30,838 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:31:30,838 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 431 transitions. [2019-09-20 13:31:30,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-09-20 13:31:30,841 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:30,842 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:30,842 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:30,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:30,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1799982100, now seen corresponding path program 1 times [2019-09-20 13:31:30,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:30,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:30,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:30,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:30,845 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:30,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:31,063 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:31,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:31,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:31:31,064 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:31,065 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:31:31,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:31:31,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:31:31,065 INFO L87 Difference]: Start difference. First operand 367 states and 431 transitions. Second operand 9 states. [2019-09-20 13:31:32,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:32,024 INFO L93 Difference]: Finished difference Result 686 states and 804 transitions. [2019-09-20 13:31:32,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-20 13:31:32,025 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 91 [2019-09-20 13:31:32,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:32,031 INFO L225 Difference]: With dead ends: 686 [2019-09-20 13:31:32,031 INFO L226 Difference]: Without dead ends: 686 [2019-09-20 13:31:32,032 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:31:32,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2019-09-20 13:31:32,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 616. [2019-09-20 13:31:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 616 states. [2019-09-20 13:31:32,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 616 states to 616 states and 715 transitions. [2019-09-20 13:31:32,062 INFO L78 Accepts]: Start accepts. Automaton has 616 states and 715 transitions. Word has length 91 [2019-09-20 13:31:32,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:32,063 INFO L475 AbstractCegarLoop]: Abstraction has 616 states and 715 transitions. [2019-09-20 13:31:32,063 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:31:32,063 INFO L276 IsEmpty]: Start isEmpty. Operand 616 states and 715 transitions. [2019-09-20 13:31:32,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2019-09-20 13:31:32,065 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:32,065 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:32,066 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:32,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:32,066 INFO L82 PathProgramCache]: Analyzing trace with hash 476527769, now seen corresponding path program 1 times [2019-09-20 13:31:32,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:32,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:32,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:32,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:32,068 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:32,217 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 22 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-09-20 13:31:32,217 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:32,217 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:32,218 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2019-09-20 13:31:32,221 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [108], [110], [113], [120], [123], [124], [125], [134], [138], [142], [145], [148], [150], [156], [158], [161], [185], [186], [187], [189], [194], [196], [197], [198], [199], [203], [206], [210], [216], [247], [251], [254], [258], [259], [262], [263], [264], [266], [267], [268], [270], [273], [275], [278], [281], [290], [292], [293], [294], [388], [389], [399], [407], [408], [409], [410], [411], [412], [413], [414], [415], [447], [448], [449], [450], [453], [454], [455], [456], [459], [460], [463], [464], [465], [466], [467], [468], [469], [470], [471], [472], [477], [478], [479], [480], [481], [482], [483], [487], [488], [489], [497], [498], [499] [2019-09-20 13:31:32,273 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:32,273 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:32,363 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:32,365 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-20 13:31:32,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:32,370 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:32,428 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:32,428 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:32,433 INFO L420 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2019-09-20 13:31:32,434 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:32,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:32,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-20 13:31:32,435 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:32,436 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:32,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:32,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:32,436 INFO L87 Difference]: Start difference. First operand 616 states and 715 transitions. Second operand 2 states. [2019-09-20 13:31:32,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:32,437 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:32,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:32,437 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 134 [2019-09-20 13:31:32,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:32,438 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:32,438 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:32,438 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:32,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:32,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:32,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:32,439 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2019-09-20 13:31:32,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:32,440 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:32,440 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:32,440 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:32,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:32,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:32 BoogieIcfgContainer [2019-09-20 13:31:32,446 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:32,448 INFO L168 Benchmark]: Toolchain (without parser) took 7171.43 ms. Allocated memory was 133.7 MB in the beginning and 305.7 MB in the end (delta: 172.0 MB). Free memory was 88.3 MB in the beginning and 78.3 MB in the end (delta: 9.9 MB). Peak memory consumption was 181.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:32,449 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:32,450 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.17 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 88.1 MB in the beginning and 164.8 MB in the end (delta: -76.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:32,451 INFO L168 Benchmark]: Boogie Preprocessor took 99.25 ms. Allocated memory is still 200.3 MB. Free memory was 164.8 MB in the beginning and 161.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:32,452 INFO L168 Benchmark]: RCFGBuilder took 1176.10 ms. Allocated memory was 200.3 MB in the beginning and 226.5 MB in the end (delta: 26.2 MB). Free memory was 161.1 MB in the beginning and 191.5 MB in the end (delta: -30.4 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:32,453 INFO L168 Benchmark]: TraceAbstraction took 5080.02 ms. Allocated memory was 226.5 MB in the beginning and 305.7 MB in the end (delta: 79.2 MB). Free memory was 191.5 MB in the beginning and 78.3 MB in the end (delta: 113.2 MB). Peak memory consumption was 192.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:32,460 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 107.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 811.17 ms. Allocated memory was 133.7 MB in the beginning and 200.3 MB in the end (delta: 66.6 MB). Free memory was 88.1 MB in the beginning and 164.8 MB in the end (delta: -76.7 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.25 ms. Allocated memory is still 200.3 MB. Free memory was 164.8 MB in the beginning and 161.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1176.10 ms. Allocated memory was 200.3 MB in the beginning and 226.5 MB in the end (delta: 26.2 MB). Free memory was 161.1 MB in the beginning and 191.5 MB in the end (delta: -30.4 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5080.02 ms. Allocated memory was 226.5 MB in the beginning and 305.7 MB in the end (delta: 79.2 MB). Free memory was 191.5 MB in the beginning and 78.3 MB in the end (delta: 113.2 MB). Peak memory consumption was 192.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 780]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 225 locations, 1 error locations. SAFE Result, 5.0s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1255 SDtfs, 884 SDslu, 2190 SDs, 0 SdLazy, 1313 SolverSat, 323 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 225 GetRequests, 176 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=616occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8872180451127819 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 118 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 827 NumberOfCodeBlocks, 827 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 817 ConstructedInterpolants, 0 QuantifiedInterpolants, 119205 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 60/65 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...