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_spec2_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:48:55,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:48:55,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:48:55,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:48:55,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:48:55,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:48:55,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:48:55,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:48:55,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:48:55,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:48:55,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:48:55,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:48:55,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:48:55,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:48:55,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:48:55,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:48:55,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:48:55,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:48:55,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:48:55,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:48:55,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:48:55,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:48:55,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:48:55,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:48:55,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:48:55,341 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:48:55,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:48:55,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:48:55,343 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:48:55,344 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:48:55,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:48:55,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:48:55,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:48:55,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:48:55,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:48:55,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:48:55,348 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:48:55,348 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:48:55,349 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:48:55,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:48:55,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:48:55,351 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 [2019-09-10 02:48:55,367 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:48:55,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:48:55,368 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:48:55,368 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:48:55,369 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:48:55,369 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:48:55,369 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:48:55,369 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:48:55,369 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:48:55,370 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:48:55,370 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:48:55,370 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:48:55,371 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:48:55,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:48:55,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:48:55,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:48:55,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:48:55,372 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:48:55,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:48:55,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:48:55,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:48:55,373 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:48:55,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:48:55,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:48:55,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:48:55,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:48:55,374 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:48:55,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:48:55,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:48:55,374 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:48:55,402 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:48:55,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:48:55,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:48:55,418 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:48:55,419 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:48:55,419 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2019-09-10 02:48:55,477 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1059af97b/867dbba9ea2f45b292650f0fb03dae13/FLAG40fd5e3a0 [2019-09-10 02:48:55,970 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:48:55,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product54.cil.c [2019-09-10 02:48:55,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1059af97b/867dbba9ea2f45b292650f0fb03dae13/FLAG40fd5e3a0 [2019-09-10 02:48:56,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1059af97b/867dbba9ea2f45b292650f0fb03dae13 [2019-09-10 02:48:56,321 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:48:56,323 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:48:56,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:56,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:48:56,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:48:56,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:56" (1/1) ... [2019-09-10 02:48:56,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74340391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:56, skipping insertion in model container [2019-09-10 02:48:56,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:48:56" (1/1) ... [2019-09-10 02:48:56,340 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:48:56,413 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:48:56,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:56,990 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:48:57,113 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:48:57,158 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:48:57,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:57 WrapperNode [2019-09-10 02:48:57,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:48:57,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:48:57,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:48:57,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:48:57,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:57" (1/1) ... [2019-09-10 02:48:57,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:57" (1/1) ... [2019-09-10 02:48:57,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:57" (1/1) ... [2019-09-10 02:48:57,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:57" (1/1) ... [2019-09-10 02:48:57,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:57" (1/1) ... [2019-09-10 02:48:57,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:57" (1/1) ... [2019-09-10 02:48:57,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:57" (1/1) ... [2019-09-10 02:48:57,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:48:57,291 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:48:57,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:48:57,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:48:57,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:57" (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 [2019-09-10 02:48:57,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:48:57,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:48:57,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:57,358 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:48:57,358 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:48:57,358 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:48:57,358 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:48:57,358 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:48:57,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:57,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:57,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:57,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:57,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:57,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:48:57,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:48:57,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:48:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:48:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:48:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:48:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:48:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-10 02:48:57,362 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:48:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:48:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:48:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:48:57,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:48:57,364 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:48:57,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-10 02:48:57,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:48:57,364 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:48:57,364 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:48:57,365 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:48:57,365 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:48:57,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:48:57,365 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:48:57,365 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:48:57,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-10 02:48:57,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:48:57,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:48:57,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:48:57,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:48:57,366 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:48:57,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:48:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:48:57,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:48:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:48:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:48:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:48:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:48:57,367 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:48:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:48:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:48:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:48:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-10 02:48:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:48:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:48:57,368 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:48:57,369 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:48:57,369 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:48:57,369 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:48:57,369 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:48:57,370 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:48:57,370 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:48:57,370 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-10 02:48:57,370 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:48:57,370 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:48:57,371 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:48:57,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:48:57,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:48:57,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:48:57,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:48:57,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:48:57,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:48:57,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:48:57,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:48:57,373 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:48:57,373 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:48:57,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:48:57,373 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:48:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:48:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:48:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:48:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:48:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:48:57,374 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-10 02:48:57,375 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:48:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:48:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:48:57,376 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:48:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:48:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-10 02:48:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-10 02:48:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:48:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-10 02:48:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:48:57,377 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:48:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:48:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:48:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:48:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:48:58,459 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:48:58,460 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:48:58,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:58 BoogieIcfgContainer [2019-09-10 02:48:58,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:48:58,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:48:58,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:48:58,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:48:58,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:48:56" (1/3) ... [2019-09-10 02:48:58,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfb65cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:58, skipping insertion in model container [2019-09-10 02:48:58,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:48:57" (2/3) ... [2019-09-10 02:48:58,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bfb65cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:48:58, skipping insertion in model container [2019-09-10 02:48:58,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:48:58" (3/3) ... [2019-09-10 02:48:58,470 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product54.cil.c [2019-09-10 02:48:58,480 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:48:58,489 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:48:58,505 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:48:58,531 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:48:58,532 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:48:58,532 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:48:58,532 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:48:58,532 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:48:58,532 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:48:58,533 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:48:58,533 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:48:58,552 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states. [2019-09-10 02:48:58,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:48:58,565 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:58,566 INFO L399 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] [2019-09-10 02:48:58,568 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:58,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:58,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1445624956, now seen corresponding path program 1 times [2019-09-10 02:48:58,577 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:58,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:58,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:58,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:58,624 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:58,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:58,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:48:58,887 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:58,892 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:48:58,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:48:58,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:48:58,905 INFO L87 Difference]: Start difference. First operand 195 states. Second operand 2 states. [2019-09-10 02:48:58,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:58,930 INFO L93 Difference]: Finished difference Result 163 states and 192 transitions. [2019-09-10 02:48:58,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:48:58,932 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-10 02:48:58,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:58,943 INFO L225 Difference]: With dead ends: 163 [2019-09-10 02:48:58,944 INFO L226 Difference]: Without dead ends: 152 [2019-09-10 02:48:58,945 INFO L628 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 [2019-09-10 02:48:58,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-09-10 02:48:58,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2019-09-10 02:48:58,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2019-09-10 02:48:58,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 180 transitions. [2019-09-10 02:48:59,001 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 180 transitions. Word has length 51 [2019-09-10 02:48:59,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:59,001 INFO L475 AbstractCegarLoop]: Abstraction has 152 states and 180 transitions. [2019-09-10 02:48:59,001 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:48:59,002 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 180 transitions. [2019-09-10 02:48:59,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 02:48:59,005 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:59,006 INFO L399 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] [2019-09-10 02:48:59,006 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:59,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:59,006 INFO L82 PathProgramCache]: Analyzing trace with hash 313505704, now seen corresponding path program 1 times [2019-09-10 02:48:59,007 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:59,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:59,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:59,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:59,008 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:59,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:59,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:48:59,162 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:59,164 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:48:59,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:48:59,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:48:59,165 INFO L87 Difference]: Start difference. First operand 152 states and 180 transitions. Second operand 3 states. [2019-09-10 02:48:59,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:59,183 INFO L93 Difference]: Finished difference Result 143 states and 168 transitions. [2019-09-10 02:48:59,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:48:59,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 02:48:59,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:59,186 INFO L225 Difference]: With dead ends: 143 [2019-09-10 02:48:59,186 INFO L226 Difference]: Without dead ends: 143 [2019-09-10 02:48:59,189 INFO L628 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 [2019-09-10 02:48:59,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-09-10 02:48:59,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2019-09-10 02:48:59,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-09-10 02:48:59,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2019-09-10 02:48:59,215 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 52 [2019-09-10 02:48:59,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:59,216 INFO L475 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2019-09-10 02:48:59,216 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:48:59,216 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2019-09-10 02:48:59,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 02:48:59,221 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:59,222 INFO L399 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] [2019-09-10 02:48:59,222 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:59,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:59,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1935207340, now seen corresponding path program 1 times [2019-09-10 02:48:59,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:59,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:59,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:59,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:59,226 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:59,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:59,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:48:59,394 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:59,394 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:48:59,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:48:59,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:48:59,395 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 7 states. [2019-09-10 02:48:59,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:48:59,754 INFO L93 Difference]: Finished difference Result 143 states and 167 transitions. [2019-09-10 02:48:59,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:48:59,755 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-10 02:48:59,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:48:59,758 INFO L225 Difference]: With dead ends: 143 [2019-09-10 02:48:59,758 INFO L226 Difference]: Without dead ends: 143 [2019-09-10 02:48:59,759 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:48:59,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-09-10 02:48:59,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2019-09-10 02:48:59,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-09-10 02:48:59,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 167 transitions. [2019-09-10 02:48:59,771 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 167 transitions. Word has length 57 [2019-09-10 02:48:59,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:48:59,772 INFO L475 AbstractCegarLoop]: Abstraction has 143 states and 167 transitions. [2019-09-10 02:48:59,772 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:48:59,772 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 167 transitions. [2019-09-10 02:48:59,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-09-10 02:48:59,776 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:48:59,776 INFO L399 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] [2019-09-10 02:48:59,776 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:48:59,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:48:59,777 INFO L82 PathProgramCache]: Analyzing trace with hash 979214064, now seen corresponding path program 1 times [2019-09-10 02:48:59,777 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:48:59,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:59,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:48:59,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:48:59,781 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:48:59,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:48:59,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:48:59,950 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:48:59,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:48:59,951 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:48:59,951 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:48:59,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:48:59,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:48:59,952 INFO L87 Difference]: Start difference. First operand 143 states and 167 transitions. Second operand 5 states. [2019-09-10 02:49:00,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:00,478 INFO L93 Difference]: Finished difference Result 252 states and 292 transitions. [2019-09-10 02:49:00,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:49:00,479 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 75 [2019-09-10 02:49:00,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:00,487 INFO L225 Difference]: With dead ends: 252 [2019-09-10 02:49:00,487 INFO L226 Difference]: Without dead ends: 252 [2019-09-10 02:49:00,488 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:49:00,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2019-09-10 02:49:00,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 233. [2019-09-10 02:49:00,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-09-10 02:49:00,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 266 transitions. [2019-09-10 02:49:00,518 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 266 transitions. Word has length 75 [2019-09-10 02:49:00,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:00,519 INFO L475 AbstractCegarLoop]: Abstraction has 233 states and 266 transitions. [2019-09-10 02:49:00,519 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:49:00,524 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 266 transitions. [2019-09-10 02:49:00,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-10 02:49:00,527 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:00,527 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:00,528 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:00,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:00,530 INFO L82 PathProgramCache]: Analyzing trace with hash -919866488, now seen corresponding path program 1 times [2019-09-10 02:49:00,530 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:00,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:00,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:00,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:00,532 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:00,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:00,630 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:00,630 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:00,630 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:00,631 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:00,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:00,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:00,632 INFO L87 Difference]: Start difference. First operand 233 states and 266 transitions. Second operand 6 states. [2019-09-10 02:49:00,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:00,843 INFO L93 Difference]: Finished difference Result 420 states and 479 transitions. [2019-09-10 02:49:00,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:49:00,844 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-09-10 02:49:00,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:00,848 INFO L225 Difference]: With dead ends: 420 [2019-09-10 02:49:00,848 INFO L226 Difference]: Without dead ends: 420 [2019-09-10 02:49:00,849 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-10 02:49:00,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2019-09-10 02:49:00,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 414. [2019-09-10 02:49:00,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 414 states. [2019-09-10 02:49:00,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 472 transitions. [2019-09-10 02:49:00,885 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 472 transitions. Word has length 89 [2019-09-10 02:49:00,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:00,885 INFO L475 AbstractCegarLoop]: Abstraction has 414 states and 472 transitions. [2019-09-10 02:49:00,885 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:00,886 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 472 transitions. [2019-09-10 02:49:00,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-10 02:49:00,888 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:00,888 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:00,889 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:00,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:00,889 INFO L82 PathProgramCache]: Analyzing trace with hash -1008826772, now seen corresponding path program 1 times [2019-09-10 02:49:00,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:00,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:00,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:00,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:00,891 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:01,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:01,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:01,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:49:01,045 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:01,047 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:49:01,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:49:01,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:49:01,048 INFO L87 Difference]: Start difference. First operand 414 states and 472 transitions. Second operand 7 states. [2019-09-10 02:49:01,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:01,694 INFO L93 Difference]: Finished difference Result 445 states and 521 transitions. [2019-09-10 02:49:01,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:49:01,694 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2019-09-10 02:49:01,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:01,699 INFO L225 Difference]: With dead ends: 445 [2019-09-10 02:49:01,699 INFO L226 Difference]: Without dead ends: 445 [2019-09-10 02:49:01,700 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:49:01,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2019-09-10 02:49:01,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 413. [2019-09-10 02:49:01,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-09-10 02:49:01,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 469 transitions. [2019-09-10 02:49:01,719 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 469 transitions. Word has length 93 [2019-09-10 02:49:01,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:01,720 INFO L475 AbstractCegarLoop]: Abstraction has 413 states and 469 transitions. [2019-09-10 02:49:01,720 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:49:01,720 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 469 transitions. [2019-09-10 02:49:01,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 02:49:01,722 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:01,722 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:01,722 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:01,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:01,722 INFO L82 PathProgramCache]: Analyzing trace with hash 390870795, now seen corresponding path program 1 times [2019-09-10 02:49:01,723 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:01,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:01,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:01,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:01,724 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:01,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:01,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:01,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:49:01,821 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:01,821 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:49:01,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:49:01,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:49:01,822 INFO L87 Difference]: Start difference. First operand 413 states and 469 transitions. Second operand 6 states. [2019-09-10 02:49:01,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:01,849 INFO L93 Difference]: Finished difference Result 423 states and 479 transitions. [2019-09-10 02:49:01,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:49:01,850 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2019-09-10 02:49:01,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:01,854 INFO L225 Difference]: With dead ends: 423 [2019-09-10 02:49:01,854 INFO L226 Difference]: Without dead ends: 423 [2019-09-10 02:49:01,854 INFO L628 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 [2019-09-10 02:49:01,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-09-10 02:49:01,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2019-09-10 02:49:01,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2019-09-10 02:49:01,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 479 transitions. [2019-09-10 02:49:01,894 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 479 transitions. Word has length 94 [2019-09-10 02:49:01,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:01,895 INFO L475 AbstractCegarLoop]: Abstraction has 423 states and 479 transitions. [2019-09-10 02:49:01,895 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:49:01,895 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 479 transitions. [2019-09-10 02:49:01,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 02:49:01,900 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:01,900 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:01,900 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:01,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:01,900 INFO L82 PathProgramCache]: Analyzing trace with hash 318484237, now seen corresponding path program 1 times [2019-09-10 02:49:01,901 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:01,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:01,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:01,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:01,902 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:01,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:02,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:02,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:02,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:49:02,039 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:02,039 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:49:02,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:49:02,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:49:02,040 INFO L87 Difference]: Start difference. First operand 423 states and 479 transitions. Second operand 8 states. [2019-09-10 02:49:02,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:02,073 INFO L93 Difference]: Finished difference Result 437 states and 493 transitions. [2019-09-10 02:49:02,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:49:02,074 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 94 [2019-09-10 02:49:02,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:02,078 INFO L225 Difference]: With dead ends: 437 [2019-09-10 02:49:02,079 INFO L226 Difference]: Without dead ends: 437 [2019-09-10 02:49:02,079 INFO L628 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 [2019-09-10 02:49:02,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2019-09-10 02:49:02,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 431. [2019-09-10 02:49:02,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2019-09-10 02:49:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 487 transitions. [2019-09-10 02:49:02,099 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 487 transitions. Word has length 94 [2019-09-10 02:49:02,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:02,101 INFO L475 AbstractCegarLoop]: Abstraction has 431 states and 487 transitions. [2019-09-10 02:49:02,101 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:49:02,101 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 487 transitions. [2019-09-10 02:49:02,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-10 02:49:02,106 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:02,107 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:02,107 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:02,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:02,107 INFO L82 PathProgramCache]: Analyzing trace with hash 648249998, now seen corresponding path program 1 times [2019-09-10 02:49:02,108 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:02,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:02,109 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:02,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:02,109 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:02,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:02,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:02,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 02:49:02,194 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:02,195 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:49:02,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:49:02,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:49:02,196 INFO L87 Difference]: Start difference. First operand 431 states and 487 transitions. Second operand 4 states. [2019-09-10 02:49:02,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:02,390 INFO L93 Difference]: Finished difference Result 903 states and 1065 transitions. [2019-09-10 02:49:02,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:49:02,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2019-09-10 02:49:02,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:02,395 INFO L225 Difference]: With dead ends: 903 [2019-09-10 02:49:02,395 INFO L226 Difference]: Without dead ends: 903 [2019-09-10 02:49:02,395 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:49:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2019-09-10 02:49:02,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 573. [2019-09-10 02:49:02,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2019-09-10 02:49:02,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 642 transitions. [2019-09-10 02:49:02,421 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 642 transitions. Word has length 94 [2019-09-10 02:49:02,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:02,421 INFO L475 AbstractCegarLoop]: Abstraction has 573 states and 642 transitions. [2019-09-10 02:49:02,421 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:49:02,421 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 642 transitions. [2019-09-10 02:49:02,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2019-09-10 02:49:02,423 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:02,423 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:49:02,424 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:02,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:02,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1149612728, now seen corresponding path program 1 times [2019-09-10 02:49:02,424 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:02,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:02,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:02,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:02,425 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:02,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:49:02,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:49:02,479 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:49:02,479 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:02,479 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:49:02,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:49:02,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:02,480 INFO L87 Difference]: Start difference. First operand 573 states and 642 transitions. Second operand 3 states. [2019-09-10 02:49:02,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:02,509 INFO L93 Difference]: Finished difference Result 895 states and 1018 transitions. [2019-09-10 02:49:02,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:49:02,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 98 [2019-09-10 02:49:02,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:02,514 INFO L225 Difference]: With dead ends: 895 [2019-09-10 02:49:02,514 INFO L226 Difference]: Without dead ends: 895 [2019-09-10 02:49:02,515 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:49:02,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2019-09-10 02:49:02,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 741. [2019-09-10 02:49:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2019-09-10 02:49:02,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 841 transitions. [2019-09-10 02:49:02,538 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 841 transitions. Word has length 98 [2019-09-10 02:49:02,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:02,539 INFO L475 AbstractCegarLoop]: Abstraction has 741 states and 841 transitions. [2019-09-10 02:49:02,539 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:49:02,539 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 841 transitions. [2019-09-10 02:49:02,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-09-10 02:49:02,543 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:49:02,543 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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] [2019-09-10 02:49:02,543 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:49:02,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:02,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1054262603, now seen corresponding path program 1 times [2019-09-10 02:49:02,544 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:49:02,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:02,545 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:49:02,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:49:02,545 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:49:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:49:02,653 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-10 02:49:02,653 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:49:02,653 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:49:02,654 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 163 with the following transitions: [2019-09-10 02:49:02,656 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [159], [161], [164], [167], [169], [175], [178], [190], [192], [195], [197], [200], [203], [206], [214], [215], [216], [226], [227], [228], [230], [235], [237], [238], [246], [250], [256], [283], [284], [294], [297], [299], [302], [312], [315], [319], [320], [323], [338], [341], [342], [343], [344], [438], [439], [444], [446], [449], [457], [458], [459], [460], [461], [462], [463], [464], [465], [505], [506], [507], [508], [509], [510], [513], [514], [517], [518], [519], [520], [521], [523], [524], [527], [528], [529], [530], [535], [536], [537], [538], [549], [550], [553], [554], [555], [563], [564], [565] [2019-09-10 02:49:02,724 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:49:02,724 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:49:02,827 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:49:02,829 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 71 root evaluator evaluations with a maximum evaluation depth of 0. Performed 71 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-10 02:49:02,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:49:02,835 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:49:02,969 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:49:02,970 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:49:02,980 INFO L420 sIntCurrentIteration]: We unified 161 AI predicates to 161 [2019-09-10 02:49:02,981 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:49:02,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:49:02,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:49:02,984 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:49:02,985 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:49:02,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:49:02,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:02,985 INFO L87 Difference]: Start difference. First operand 741 states and 841 transitions. Second operand 2 states. [2019-09-10 02:49:02,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:49:02,986 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:49:02,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:49:02,986 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 162 [2019-09-10 02:49:02,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:49:02,987 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:49:02,987 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:49:02,988 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:49:02,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:49:02,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:49:02,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:49:02,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:49:02,989 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 162 [2019-09-10 02:49:02,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:49:02,989 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:49:02,989 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:49:02,989 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:49:02,989 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:49:02,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:49:02 BoogieIcfgContainer [2019-09-10 02:49:02,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:49:02,998 INFO L168 Benchmark]: Toolchain (without parser) took 6673.96 ms. Allocated memory was 133.7 MB in the beginning and 314.6 MB in the end (delta: 180.9 MB). Free memory was 89.0 MB in the beginning and 272.5 MB in the end (delta: -183.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:49:02,999 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.7 MB. Free memory was 108.3 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:49:03,001 INFO L168 Benchmark]: CACSL2BoogieTranslator took 835.51 ms. Allocated memory was 133.7 MB in the beginning and 201.9 MB in the end (delta: 68.2 MB). Free memory was 88.7 MB in the beginning and 165.6 MB in the end (delta: -76.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:03,002 INFO L168 Benchmark]: Boogie Preprocessor took 131.27 ms. Allocated memory is still 201.9 MB. Free memory was 165.6 MB in the beginning and 161.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:03,008 INFO L168 Benchmark]: RCFGBuilder took 1170.20 ms. Allocated memory was 201.9 MB in the beginning and 227.0 MB in the end (delta: 25.2 MB). Free memory was 161.2 MB in the beginning and 189.3 MB in the end (delta: -28.1 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:03,009 INFO L168 Benchmark]: TraceAbstraction took 4532.72 ms. Allocated memory was 227.0 MB in the beginning and 314.6 MB in the end (delta: 87.6 MB). Free memory was 189.3 MB in the beginning and 272.5 MB in the end (delta: -83.1 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:49:03,020 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 133.7 MB. Free memory was 108.3 MB in the beginning and 108.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 835.51 ms. Allocated memory was 133.7 MB in the beginning and 201.9 MB in the end (delta: 68.2 MB). Free memory was 88.7 MB in the beginning and 165.6 MB in the end (delta: -76.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.27 ms. Allocated memory is still 201.9 MB. Free memory was 165.6 MB in the beginning and 161.2 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1170.20 ms. Allocated memory was 201.9 MB in the beginning and 227.0 MB in the end (delta: 25.2 MB). Free memory was 161.2 MB in the beginning and 189.3 MB in the end (delta: -28.1 MB). Peak memory consumption was 87.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4532.72 ms. Allocated memory was 227.0 MB in the beginning and 314.6 MB in the end (delta: 87.6 MB). Free memory was 189.3 MB in the beginning and 272.5 MB in the end (delta: -83.1 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1002]: 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 43 procedures, 254 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 11 OverallIterations, 2 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1802 SDtfs, 1047 SDslu, 3542 SDs, 0 SdLazy, 1165 SolverSat, 267 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 263 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=741occurred in iteration=10, 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, 0.8322981366459627 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 547 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 959 NumberOfCodeBlocks, 959 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 948 ConstructedInterpolants, 0 QuantifiedInterpolants, 146177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 52/60 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...