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_spec3_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:24,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:24,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:24,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:24,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:24,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:24,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:24,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:24,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:24,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:24,359 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:24,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:24,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:24,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:24,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:24,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:24,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:24,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:24,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:24,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:24,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:24,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:24,376 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:24,377 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:24,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:24,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:24,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:24,384 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:24,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:24,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:24,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:24,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:24,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:24,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:24,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:24,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:24,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:24,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:24,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:24,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:24,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:24,394 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 13:30:24,422 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:24,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:24,423 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:24,423 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:24,424 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:24,424 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:24,424 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:24,425 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:24,425 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:24,425 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:24,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:24,426 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:24,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:24,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:24,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:24,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:24,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:24,427 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:24,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:24,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:24,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:24,428 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:24,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:24,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:24,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:24,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:24,429 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:24,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:24,429 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:24,430 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:24,460 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:24,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:24,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:24,487 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:24,488 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:24,488 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product37.cil.c [2019-09-20 13:30:24,551 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0de62d904/261c410cb9be4181b8c1c53e09031468/FLAGd8b2526f3 [2019-09-20 13:30:25,112 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:25,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product37.cil.c [2019-09-20 13:30:25,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0de62d904/261c410cb9be4181b8c1c53e09031468/FLAGd8b2526f3 [2019-09-20 13:30:25,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0de62d904/261c410cb9be4181b8c1c53e09031468 [2019-09-20 13:30:25,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:25,467 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:25,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:25,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:25,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:25,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:25" (1/1) ... [2019-09-20 13:30:25,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4229c3a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:25, skipping insertion in model container [2019-09-20 13:30:25,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:25" (1/1) ... [2019-09-20 13:30:25,485 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:25,551 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:26,064 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:26,085 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:26,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:26,262 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:26,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:26 WrapperNode [2019-09-20 13:30:26,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:26,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:26,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:26,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:26,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:26" (1/1) ... [2019-09-20 13:30:26,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:26" (1/1) ... [2019-09-20 13:30:26,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:26" (1/1) ... [2019-09-20 13:30:26,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:26" (1/1) ... [2019-09-20 13:30:26,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:26" (1/1) ... [2019-09-20 13:30:26,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:26" (1/1) ... [2019-09-20 13:30:26,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:26" (1/1) ... [2019-09-20 13:30:26,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:26,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:26,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:26,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:26,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:26" (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 13:30:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:26,423 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:26,424 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:26,424 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:26,424 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:26,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:26,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:26,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:26,426 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:26,427 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:26,427 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:26,428 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:26,428 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:26,428 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:26,429 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:30:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:26,430 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:26,431 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:30:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-20 13:30:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:26,440 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:30:26,441 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:26,441 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:26,441 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:26,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-20 13:30:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:30:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:30:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:26,442 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:27,466 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:27,466 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:27,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:27 BoogieIcfgContainer [2019-09-20 13:30:27,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:27,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:27,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:27,472 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:27,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:25" (1/3) ... [2019-09-20 13:30:27,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47505e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:27, skipping insertion in model container [2019-09-20 13:30:27,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:26" (2/3) ... [2019-09-20 13:30:27,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47505e9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:27, skipping insertion in model container [2019-09-20 13:30:27,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:27" (3/3) ... [2019-09-20 13:30:27,476 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product37.cil.c [2019-09-20 13:30:27,486 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:27,495 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:27,512 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:27,540 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:27,540 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:27,540 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:27,540 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:27,540 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:27,541 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:27,541 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:27,541 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:27,561 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2019-09-20 13:30:27,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:27,576 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:27,577 INFO L407 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] [2019-09-20 13:30:27,580 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:27,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:27,585 INFO L82 PathProgramCache]: Analyzing trace with hash -286818330, now seen corresponding path program 1 times [2019-09-20 13:30:27,587 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:27,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:27,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:27,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:27,634 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:27,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:27,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:27,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:27,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:27,923 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:27,930 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:27,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:27,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:27,948 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 2 states. [2019-09-20 13:30:27,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:27,982 INFO L93 Difference]: Finished difference Result 140 states and 164 transitions. [2019-09-20 13:30:27,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:27,983 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-09-20 13:30:27,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:27,997 INFO L225 Difference]: With dead ends: 140 [2019-09-20 13:30:27,997 INFO L226 Difference]: Without dead ends: 129 [2019-09-20 13:30:27,999 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 13:30:28,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-09-20 13:30:28,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-09-20 13:30:28,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-09-20 13:30:28,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 152 transitions. [2019-09-20 13:30:28,059 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 152 transitions. Word has length 52 [2019-09-20 13:30:28,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:28,059 INFO L475 AbstractCegarLoop]: Abstraction has 129 states and 152 transitions. [2019-09-20 13:30:28,059 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:28,060 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 152 transitions. [2019-09-20 13:30:28,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-20 13:30:28,063 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:28,064 INFO L407 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] [2019-09-20 13:30:28,064 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:28,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:28,065 INFO L82 PathProgramCache]: Analyzing trace with hash 2080874190, now seen corresponding path program 1 times [2019-09-20 13:30:28,065 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:28,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:28,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:28,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:28,068 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:28,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:28,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:28,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:28,222 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:28,225 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:28,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:28,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:28,226 INFO L87 Difference]: Start difference. First operand 129 states and 152 transitions. Second operand 3 states. [2019-09-20 13:30:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:28,255 INFO L93 Difference]: Finished difference Result 120 states and 140 transitions. [2019-09-20 13:30:28,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:28,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-09-20 13:30:28,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:28,260 INFO L225 Difference]: With dead ends: 120 [2019-09-20 13:30:28,260 INFO L226 Difference]: Without dead ends: 120 [2019-09-20 13:30:28,261 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 13:30:28,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-09-20 13:30:28,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-09-20 13:30:28,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-09-20 13:30:28,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2019-09-20 13:30:28,292 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 53 [2019-09-20 13:30:28,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:28,292 INFO L475 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2019-09-20 13:30:28,293 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:28,293 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2019-09-20 13:30:28,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:28,295 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:28,296 INFO L407 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] [2019-09-20 13:30:28,296 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:28,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:28,298 INFO L82 PathProgramCache]: Analyzing trace with hash -655892717, now seen corresponding path program 1 times [2019-09-20 13:30:28,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:28,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:28,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:28,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:28,302 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:28,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:28,527 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:28,527 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:28,528 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:28,528 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:28,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:28,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:28,529 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 7 states. [2019-09-20 13:30:28,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:28,911 INFO L93 Difference]: Finished difference Result 120 states and 139 transitions. [2019-09-20 13:30:28,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:28,912 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:30:28,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:28,914 INFO L225 Difference]: With dead ends: 120 [2019-09-20 13:30:28,914 INFO L226 Difference]: Without dead ends: 120 [2019-09-20 13:30:28,915 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:28,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-09-20 13:30:28,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-09-20 13:30:28,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-09-20 13:30:28,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2019-09-20 13:30:28,934 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 57 [2019-09-20 13:30:28,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:28,936 INFO L475 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2019-09-20 13:30:28,936 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2019-09-20 13:30:28,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-20 13:30:28,945 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:28,949 INFO L407 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] [2019-09-20 13:30:28,949 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:28,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:28,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1564257937, now seen corresponding path program 1 times [2019-09-20 13:30:28,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:28,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:28,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:28,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:28,954 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:29,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:29,127 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:29,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:30:29,128 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:29,128 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:30:29,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:30:29,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:30:29,129 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 5 states. [2019-09-20 13:30:29,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:29,677 INFO L93 Difference]: Finished difference Result 226 states and 262 transitions. [2019-09-20 13:30:29,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:29,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-20 13:30:29,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:29,680 INFO L225 Difference]: With dead ends: 226 [2019-09-20 13:30:29,680 INFO L226 Difference]: Without dead ends: 226 [2019-09-20 13:30:29,681 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:29,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2019-09-20 13:30:29,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 208. [2019-09-20 13:30:29,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2019-09-20 13:30:29,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 238 transitions. [2019-09-20 13:30:29,700 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 238 transitions. Word has length 70 [2019-09-20 13:30:29,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:29,700 INFO L475 AbstractCegarLoop]: Abstraction has 208 states and 238 transitions. [2019-09-20 13:30:29,701 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:30:29,701 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 238 transitions. [2019-09-20 13:30:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-20 13:30:29,702 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:29,702 INFO L407 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] [2019-09-20 13:30:29,703 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:29,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:29,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1686316557, now seen corresponding path program 1 times [2019-09-20 13:30:29,703 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:29,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:29,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:29,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:29,706 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:29,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:29,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:29,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:29,840 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:29,842 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:29,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:29,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:29,843 INFO L87 Difference]: Start difference. First operand 208 states and 238 transitions. Second operand 6 states. [2019-09-20 13:30:30,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:30,094 INFO L93 Difference]: Finished difference Result 320 states and 372 transitions. [2019-09-20 13:30:30,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:30,095 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2019-09-20 13:30:30,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:30,100 INFO L225 Difference]: With dead ends: 320 [2019-09-20 13:30:30,101 INFO L226 Difference]: Without dead ends: 320 [2019-09-20 13:30:30,101 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:30,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-09-20 13:30:30,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 316. [2019-09-20 13:30:30,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2019-09-20 13:30:30,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 368 transitions. [2019-09-20 13:30:30,132 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 368 transitions. Word has length 84 [2019-09-20 13:30:30,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:30,132 INFO L475 AbstractCegarLoop]: Abstraction has 316 states and 368 transitions. [2019-09-20 13:30:30,133 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:30,133 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 368 transitions. [2019-09-20 13:30:30,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:30:30,134 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:30,135 INFO L407 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] [2019-09-20 13:30:30,135 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:30,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:30,135 INFO L82 PathProgramCache]: Analyzing trace with hash 645528839, now seen corresponding path program 1 times [2019-09-20 13:30:30,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:30,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:30,138 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:30,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:30,138 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:30,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:30,236 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:30,236 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:30,237 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:30,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:30,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:30,238 INFO L87 Difference]: Start difference. First operand 316 states and 368 transitions. Second operand 6 states. [2019-09-20 13:30:30,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:30,523 INFO L93 Difference]: Finished difference Result 495 states and 592 transitions. [2019-09-20 13:30:30,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:30,524 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2019-09-20 13:30:30,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:30,531 INFO L225 Difference]: With dead ends: 495 [2019-09-20 13:30:30,535 INFO L226 Difference]: Without dead ends: 495 [2019-09-20 13:30:30,535 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:30,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2019-09-20 13:30:30,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 477. [2019-09-20 13:30:30,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2019-09-20 13:30:30,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 569 transitions. [2019-09-20 13:30:30,596 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 569 transitions. Word has length 88 [2019-09-20 13:30:30,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:30,598 INFO L475 AbstractCegarLoop]: Abstraction has 477 states and 569 transitions. [2019-09-20 13:30:30,598 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:30,598 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 569 transitions. [2019-09-20 13:30:30,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:30:30,605 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:30,605 INFO L407 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] [2019-09-20 13:30:30,606 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:30,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:30,607 INFO L82 PathProgramCache]: Analyzing trace with hash -277154744, now seen corresponding path program 1 times [2019-09-20 13:30:30,608 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:30,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:30,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:30,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:30,613 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:30,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:30,699 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:30,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:30:30,700 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:30,701 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:30:30,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:30:30,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:30:30,702 INFO L87 Difference]: Start difference. First operand 477 states and 569 transitions. Second operand 5 states. [2019-09-20 13:30:30,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:30,726 INFO L93 Difference]: Finished difference Result 487 states and 579 transitions. [2019-09-20 13:30:30,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:30:30,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2019-09-20 13:30:30,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:30,730 INFO L225 Difference]: With dead ends: 487 [2019-09-20 13:30:30,731 INFO L226 Difference]: Without dead ends: 487 [2019-09-20 13:30:30,731 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:30:30,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2019-09-20 13:30:30,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 481. [2019-09-20 13:30:30,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2019-09-20 13:30:30,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 572 transitions. [2019-09-20 13:30:30,769 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 572 transitions. Word has length 88 [2019-09-20 13:30:30,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:30,769 INFO L475 AbstractCegarLoop]: Abstraction has 481 states and 572 transitions. [2019-09-20 13:30:30,770 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:30:30,770 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 572 transitions. [2019-09-20 13:30:30,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-20 13:30:30,772 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:30,773 INFO L407 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] [2019-09-20 13:30:30,774 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:30,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:30,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1121160246, now seen corresponding path program 1 times [2019-09-20 13:30:30,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:30,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:30,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:30,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:30,777 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:30,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:30,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:30,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:30:30,915 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:30,916 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:30:30,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:30:30,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:30,917 INFO L87 Difference]: Start difference. First operand 481 states and 572 transitions. Second operand 9 states. [2019-09-20 13:30:30,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:30,979 INFO L93 Difference]: Finished difference Result 487 states and 579 transitions. [2019-09-20 13:30:30,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:30:30,979 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2019-09-20 13:30:30,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:30,983 INFO L225 Difference]: With dead ends: 487 [2019-09-20 13:30:30,983 INFO L226 Difference]: Without dead ends: 487 [2019-09-20 13:30:30,983 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:30,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2019-09-20 13:30:31,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 481. [2019-09-20 13:30:31,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2019-09-20 13:30:31,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 570 transitions. [2019-09-20 13:30:31,005 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 570 transitions. Word has length 88 [2019-09-20 13:30:31,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:31,006 INFO L475 AbstractCegarLoop]: Abstraction has 481 states and 570 transitions. [2019-09-20 13:30:31,006 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:30:31,006 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 570 transitions. [2019-09-20 13:30:31,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:31,008 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:31,009 INFO L407 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] [2019-09-20 13:30:31,009 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:31,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:31,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1811416500, now seen corresponding path program 1 times [2019-09-20 13:30:31,010 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:31,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:31,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:31,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:31,012 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:31,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:31,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:31,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:31,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-20 13:30:31,114 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:31,114 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 13:30:31,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 13:30:31,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:31,115 INFO L87 Difference]: Start difference. First operand 481 states and 570 transitions. Second operand 10 states. [2019-09-20 13:30:31,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:31,419 INFO L93 Difference]: Finished difference Result 487 states and 564 transitions. [2019-09-20 13:30:31,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-20 13:30:31,419 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2019-09-20 13:30:31,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:31,422 INFO L225 Difference]: With dead ends: 487 [2019-09-20 13:30:31,422 INFO L226 Difference]: Without dead ends: 487 [2019-09-20 13:30:31,423 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:30:31,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2019-09-20 13:30:31,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 470. [2019-09-20 13:30:31,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2019-09-20 13:30:31,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 539 transitions. [2019-09-20 13:30:31,440 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 539 transitions. Word has length 89 [2019-09-20 13:30:31,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:31,440 INFO L475 AbstractCegarLoop]: Abstraction has 470 states and 539 transitions. [2019-09-20 13:30:31,440 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 13:30:31,441 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 539 transitions. [2019-09-20 13:30:31,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-09-20 13:30:31,443 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:31,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:30:31,444 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:31,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:31,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1116405482, now seen corresponding path program 1 times [2019-09-20 13:30:31,445 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:31,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:31,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:31,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:31,447 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:31,519 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-20 13:30:31,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:31,520 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:31,521 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2019-09-20 13:30:31,523 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [102], [104], [105], [108], [110], [113], [120], [123], [125], [134], [138], [142], [148], [150], [156], [158], [161], [185], [186], [187], [189], [192], [196], [197], [198], [199], [202], [205], [209], [215], [242], [243], [246], [250], [251], [254], [256], [259], [269], [277], [280], [281], [282], [305], [307], [308], [309], [310], [375], [376], [386], [388], [391], [393], [395], [398], [400], [405], [411], [412], [420], [421], [422], [423], [424], [425], [426], [427], [428], [460], [461], [462], [463], [466], [467], [472], [473], [476], [477], [478], [479], [480], [481], [482], [483], [488], [489], [490], [491], [498], [500], [501], [506], [507], [508], [509], [510], [511], [512], [514], [515], [516] [2019-09-20 13:30:31,566 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:31,567 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:31,669 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:31,671 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 126 variables. [2019-09-20 13:30:31,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:31,676 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:31,727 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:31,727 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:31,731 INFO L420 sIntCurrentIteration]: We unified 131 AI predicates to 131 [2019-09-20 13:30:31,732 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:31,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:31,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-09-20 13:30:31,733 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:31,733 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:31,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:31,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:31,734 INFO L87 Difference]: Start difference. First operand 470 states and 539 transitions. Second operand 2 states. [2019-09-20 13:30:31,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:31,735 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:31,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:31,735 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 132 [2019-09-20 13:30:31,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:31,735 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:31,736 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:31,736 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 131 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 13:30:31,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:31,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:31,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:31,737 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 132 [2019-09-20 13:30:31,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:31,737 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:31,737 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:31,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:31,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:31 BoogieIcfgContainer [2019-09-20 13:30:31,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:31,747 INFO L168 Benchmark]: Toolchain (without parser) took 6279.47 ms. Allocated memory was 139.5 MB in the beginning and 321.4 MB in the end (delta: 181.9 MB). Free memory was 85.6 MB in the beginning and 229.6 MB in the end (delta: -144.0 MB). Peak memory consumption was 38.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:31,747 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 105.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:31,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.88 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 85.4 MB in the beginning and 162.3 MB in the end (delta: -76.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:31,749 INFO L168 Benchmark]: Boogie Preprocessor took 99.57 ms. Allocated memory is still 198.7 MB. Free memory was 162.3 MB in the beginning and 158.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:31,750 INFO L168 Benchmark]: RCFGBuilder took 1104.50 ms. Allocated memory was 198.7 MB in the beginning and 222.8 MB in the end (delta: 24.1 MB). Free memory was 158.1 MB in the beginning and 189.3 MB in the end (delta: -31.2 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:31,751 INFO L168 Benchmark]: TraceAbstraction took 4275.37 ms. Allocated memory was 222.8 MB in the beginning and 321.4 MB in the end (delta: 98.6 MB). Free memory was 188.0 MB in the beginning and 229.6 MB in the end (delta: -41.6 MB). Peak memory consumption was 56.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:31,755 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 105.4 MB in the beginning and 105.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 794.88 ms. Allocated memory was 139.5 MB in the beginning and 198.7 MB in the end (delta: 59.2 MB). Free memory was 85.4 MB in the beginning and 162.3 MB in the end (delta: -76.9 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.57 ms. Allocated memory is still 198.7 MB. Free memory was 162.3 MB in the beginning and 158.1 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1104.50 ms. Allocated memory was 198.7 MB in the beginning and 222.8 MB in the end (delta: 24.1 MB). Free memory was 158.1 MB in the beginning and 189.3 MB in the end (delta: -31.2 MB). Peak memory consumption was 88.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4275.37 ms. Allocated memory was 222.8 MB in the beginning and 321.4 MB in the end (delta: 98.6 MB). Free memory was 188.0 MB in the beginning and 229.6 MB in the end (delta: -41.6 MB). Peak memory consumption was 56.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 860]: 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 38 procedures, 228 locations, 1 error locations. SAFE Result, 4.2s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1386 SDtfs, 620 SDslu, 4316 SDs, 0 SdLazy, 700 SolverSat, 153 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 216 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=481occurred in iteration=7, 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, 0.9465648854961832 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 69 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 801 NumberOfCodeBlocks, 801 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 791 ConstructedInterpolants, 0 QuantifiedInterpolants, 98022 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 28/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...