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_spec1_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:40,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:40,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:40,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:40,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:40,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:40,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:40,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:40,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:40,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:40,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:40,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:40,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:40,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:40,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:40,408 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:40,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:40,410 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:40,412 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:40,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:40,415 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:40,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:40,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:40,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:40,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:40,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:40,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:40,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:40,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:40,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:40,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:40,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:40,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:40,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:40,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:40,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:40,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:40,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:40,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:40,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:40,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:40,431 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 13:29:40,446 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:40,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:40,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:40,447 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:40,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:40,448 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:40,448 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:40,448 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:40,448 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:40,448 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:40,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:40,450 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:40,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:40,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:40,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:40,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:40,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:40,451 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:40,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:40,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:40,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:40,452 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:40,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:40,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:40,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:40,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:40,453 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:40,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:40,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:40,453 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:40,483 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:40,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:40,500 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:40,501 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:40,502 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:40,503 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product29.cil.c [2019-09-20 13:29:40,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cae1c62b/3ddaa1d25002451bb4cc946eb21c8dce/FLAG6a4e1fcf2 [2019-09-20 13:29:41,106 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:41,107 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product29.cil.c [2019-09-20 13:29:41,120 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cae1c62b/3ddaa1d25002451bb4cc946eb21c8dce/FLAG6a4e1fcf2 [2019-09-20 13:29:41,389 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8cae1c62b/3ddaa1d25002451bb4cc946eb21c8dce [2019-09-20 13:29:41,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:41,407 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:41,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:41,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:41,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:41,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:41" (1/1) ... [2019-09-20 13:29:41,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e8c876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:41, skipping insertion in model container [2019-09-20 13:29:41,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:41" (1/1) ... [2019-09-20 13:29:41,427 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:41,472 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:41,889 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:41,911 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:42,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:42,093 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:42,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:42 WrapperNode [2019-09-20 13:29:42,094 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:42,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:42,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:42,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:42,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:42" (1/1) ... [2019-09-20 13:29:42,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:42" (1/1) ... [2019-09-20 13:29:42,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:42" (1/1) ... [2019-09-20 13:29:42,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:42" (1/1) ... [2019-09-20 13:29:42,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:42" (1/1) ... [2019-09-20 13:29:42,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:42" (1/1) ... [2019-09-20 13:29:42,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:42" (1/1) ... [2019-09-20 13:29:42,188 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:42,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:42,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:42,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:42,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:42" (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 13:29:42,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:42,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:42,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:42,280 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:42,280 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:29:42,280 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:29:42,281 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:42,281 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:29:42,281 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:42,281 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:42,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:42,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:42,283 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:42,284 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:29:42,284 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:42,285 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:42,285 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:42,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:42,286 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:42,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:42,287 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:42,287 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:42,287 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:42,287 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:42,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:42,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:42,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:42,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:42,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:42,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:42,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:42,290 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:42,290 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:42,290 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:42,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:42,291 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:42,291 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:42,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:29:42,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:42,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:42,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:42,293 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:42,293 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:42,293 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:42,293 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:42,293 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:29:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:42,294 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:29:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:29:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:29:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:29:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:42,295 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:42,296 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:42,297 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:42,298 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:42,299 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:42,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:42,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:42,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:42,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:42,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:42,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:42,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:42,300 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:42,300 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:42,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:42,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:42,302 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:42,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:42,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:42,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:43,500 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:43,501 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:43,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:43 BoogieIcfgContainer [2019-09-20 13:29:43,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:43,504 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:43,504 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:43,507 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:43,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:41" (1/3) ... [2019-09-20 13:29:43,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb3f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:43, skipping insertion in model container [2019-09-20 13:29:43,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:42" (2/3) ... [2019-09-20 13:29:43,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb3f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:43, skipping insertion in model container [2019-09-20 13:29:43,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:43" (3/3) ... [2019-09-20 13:29:43,511 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product29.cil.c [2019-09-20 13:29:43,521 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:43,530 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:43,547 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:43,574 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:43,575 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:43,575 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:43,575 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:43,575 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:43,575 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:43,576 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:43,576 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:43,596 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states. [2019-09-20 13:29:43,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:43,628 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:43,629 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] [2019-09-20 13:29:43,631 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:43,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:43,639 INFO L82 PathProgramCache]: Analyzing trace with hash -317662081, now seen corresponding path program 1 times [2019-09-20 13:29:43,641 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:43,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:43,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:43,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:43,702 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:43,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:43,971 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 13:29:43,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:43,973 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:43,973 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:43,979 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:43,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:43,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:43,997 INFO L87 Difference]: Start difference. First operand 170 states. Second operand 2 states. [2019-09-20 13:29:44,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:44,041 INFO L93 Difference]: Finished difference Result 130 states and 153 transitions. [2019-09-20 13:29:44,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:44,046 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:44,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:44,063 INFO L225 Difference]: With dead ends: 130 [2019-09-20 13:29:44,068 INFO L226 Difference]: Without dead ends: 119 [2019-09-20 13:29:44,071 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 13:29:44,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-09-20 13:29:44,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-09-20 13:29:44,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-09-20 13:29:44,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 141 transitions. [2019-09-20 13:29:44,128 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 141 transitions. Word has length 46 [2019-09-20 13:29:44,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:44,128 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 141 transitions. [2019-09-20 13:29:44,128 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:44,129 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 141 transitions. [2019-09-20 13:29:44,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:44,132 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:44,132 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] [2019-09-20 13:29:44,133 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:44,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:44,133 INFO L82 PathProgramCache]: Analyzing trace with hash -638298370, now seen corresponding path program 1 times [2019-09-20 13:29:44,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:44,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:44,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:44,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:44,136 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:44,286 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 13:29:44,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:44,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:44,287 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:44,289 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:44,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:44,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:44,290 INFO L87 Difference]: Start difference. First operand 119 states and 141 transitions. Second operand 3 states. [2019-09-20 13:29:44,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:44,305 INFO L93 Difference]: Finished difference Result 110 states and 129 transitions. [2019-09-20 13:29:44,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:44,306 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:44,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:44,309 INFO L225 Difference]: With dead ends: 110 [2019-09-20 13:29:44,309 INFO L226 Difference]: Without dead ends: 110 [2019-09-20 13:29:44,310 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 13:29:44,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-20 13:29:44,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-20 13:29:44,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-20 13:29:44,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 129 transitions. [2019-09-20 13:29:44,328 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 129 transitions. Word has length 47 [2019-09-20 13:29:44,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:44,329 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 129 transitions. [2019-09-20 13:29:44,330 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:44,330 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 129 transitions. [2019-09-20 13:29:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:29:44,333 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:44,333 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] [2019-09-20 13:29:44,333 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:44,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:44,334 INFO L82 PathProgramCache]: Analyzing trace with hash -1000798520, now seen corresponding path program 1 times [2019-09-20 13:29:44,334 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:44,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:44,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:44,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:44,337 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:44,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:44,484 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 13:29:44,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:44,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:44,485 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:44,485 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:44,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:44,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:44,487 INFO L87 Difference]: Start difference. First operand 110 states and 129 transitions. Second operand 3 states. [2019-09-20 13:29:44,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:44,516 INFO L93 Difference]: Finished difference Result 110 states and 128 transitions. [2019-09-20 13:29:44,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:44,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-09-20 13:29:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:44,521 INFO L225 Difference]: With dead ends: 110 [2019-09-20 13:29:44,521 INFO L226 Difference]: Without dead ends: 110 [2019-09-20 13:29:44,521 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 13:29:44,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-20 13:29:44,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-20 13:29:44,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-20 13:29:44,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 128 transitions. [2019-09-20 13:29:44,540 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 128 transitions. Word has length 51 [2019-09-20 13:29:44,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:44,541 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 128 transitions. [2019-09-20 13:29:44,541 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:44,541 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 128 transitions. [2019-09-20 13:29:44,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:29:44,549 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:44,550 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] [2019-09-20 13:29:44,550 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:44,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:44,550 INFO L82 PathProgramCache]: Analyzing trace with hash -100887990, now seen corresponding path program 1 times [2019-09-20 13:29:44,551 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:44,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:44,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:44,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:44,554 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:44,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:44,687 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 13:29:44,688 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:44,688 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:44,688 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:44,689 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:44,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:44,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:44,690 INFO L87 Difference]: Start difference. First operand 110 states and 128 transitions. Second operand 6 states. [2019-09-20 13:29:44,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:44,926 INFO L93 Difference]: Finished difference Result 189 states and 224 transitions. [2019-09-20 13:29:44,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:44,927 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2019-09-20 13:29:44,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:44,931 INFO L225 Difference]: With dead ends: 189 [2019-09-20 13:29:44,931 INFO L226 Difference]: Without dead ends: 189 [2019-09-20 13:29:44,932 INFO L636 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 [2019-09-20 13:29:44,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2019-09-20 13:29:44,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 187. [2019-09-20 13:29:44,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2019-09-20 13:29:44,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 222 transitions. [2019-09-20 13:29:44,951 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 222 transitions. Word has length 64 [2019-09-20 13:29:44,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:44,952 INFO L475 AbstractCegarLoop]: Abstraction has 187 states and 222 transitions. [2019-09-20 13:29:44,952 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:44,952 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 222 transitions. [2019-09-20 13:29:44,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-20 13:29:44,954 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:44,954 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] [2019-09-20 13:29:44,954 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:44,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:44,955 INFO L82 PathProgramCache]: Analyzing trace with hash 940440198, now seen corresponding path program 1 times [2019-09-20 13:29:44,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:44,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:44,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:44,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:44,958 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:44,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:45,102 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 13:29:45,103 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:45,103 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:45,103 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:45,103 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:45,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:45,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:45,104 INFO L87 Difference]: Start difference. First operand 187 states and 222 transitions. Second operand 7 states. [2019-09-20 13:29:45,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:45,438 INFO L93 Difference]: Finished difference Result 122 states and 135 transitions. [2019-09-20 13:29:45,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:45,438 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2019-09-20 13:29:45,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:45,439 INFO L225 Difference]: With dead ends: 122 [2019-09-20 13:29:45,439 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:45,440 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:29:45,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:45,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:45,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:45,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:45,442 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2019-09-20 13:29:45,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:45,442 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:45,442 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:45,442 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:45,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:45,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:45 BoogieIcfgContainer [2019-09-20 13:29:45,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:45,451 INFO L168 Benchmark]: Toolchain (without parser) took 4042.96 ms. Allocated memory was 136.3 MB in the beginning and 278.4 MB in the end (delta: 142.1 MB). Free memory was 83.3 MB in the beginning and 201.4 MB in the end (delta: -118.1 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:45,452 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 136.3 MB. Free memory was 102.2 MB in the beginning and 102.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:45,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.66 ms. Allocated memory was 136.3 MB in the beginning and 197.1 MB in the end (delta: 60.8 MB). Free memory was 83.1 MB in the beginning and 164.2 MB in the end (delta: -81.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:45,456 INFO L168 Benchmark]: Boogie Preprocessor took 94.97 ms. Allocated memory is still 197.1 MB. Free memory was 164.2 MB in the beginning and 160.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:45,457 INFO L168 Benchmark]: RCFGBuilder took 1311.25 ms. Allocated memory is still 197.1 MB. Free memory was 160.1 MB in the beginning and 74.7 MB in the end (delta: 85.4 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:45,459 INFO L168 Benchmark]: TraceAbstraction took 1944.42 ms. Allocated memory was 197.1 MB in the beginning and 278.4 MB in the end (delta: 81.3 MB). Free memory was 74.1 MB in the beginning and 201.4 MB in the end (delta: -127.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:29:45,469 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 136.3 MB. Free memory was 102.2 MB in the beginning and 102.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 685.66 ms. Allocated memory was 136.3 MB in the beginning and 197.1 MB in the end (delta: 60.8 MB). Free memory was 83.1 MB in the beginning and 164.2 MB in the end (delta: -81.1 MB). Peak memory consumption was 24.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 94.97 ms. Allocated memory is still 197.1 MB. Free memory was 164.2 MB in the beginning and 160.1 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1311.25 ms. Allocated memory is still 197.1 MB. Free memory was 160.1 MB in the beginning and 74.7 MB in the end (delta: 85.4 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1944.42 ms. Allocated memory was 197.1 MB in the beginning and 278.4 MB in the end (delta: 81.3 MB). Free memory was 74.1 MB in the beginning and 201.4 MB in the end (delta: -127.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 934]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 231 locations, 1 error locations. SAFE Result, 1.8s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 614 SDtfs, 276 SDslu, 698 SDs, 0 SdLazy, 230 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 271 ConstructedInterpolants, 0 QuantifiedInterpolants, 27879 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...