java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:50:43,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:50:43,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:50:43,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:50:43,383 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:50:43,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:50:43,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:50:43,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:50:43,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:50:43,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:50:43,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:50:43,392 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:50:43,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:50:43,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:50:43,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:50:43,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:50:43,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:50:43,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:50:43,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:50:43,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:50:43,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:50:43,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:50:43,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:50:43,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:50:43,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:50:43,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:50:43,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:50:43,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:50:43,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:50:43,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:50:43,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:50:43,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:50:43,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:50:43,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:50:43,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:50:43,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:50:43,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:50:43,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:50:43,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:50:43,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:50:43,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:50:43,431 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 [2019-09-10 02:50:43,455 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:50:43,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:50:43,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:50:43,456 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:50:43,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:50:43,457 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:50:43,457 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:50:43,458 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:50:43,458 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:50:43,458 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:50:43,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:50:43,461 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:50:43,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:50:43,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:50:43,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:50:43,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:50:43,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:50:43,462 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:50:43,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:50:43,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:50:43,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:50:43,463 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:50:43,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:50:43,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:43,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:50:43,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:50:43,465 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:50:43,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:50:43,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:50:43,465 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:50:43,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:50:43,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:50:43,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:50:43,539 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:50:43,540 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:50:43,541 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product14.cil.c [2019-09-10 02:50:43,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ae94705f/2df6aa4853124e6f8d937f193e70daf4/FLAG41e3ad60c [2019-09-10 02:50:44,089 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:50:44,095 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product14.cil.c [2019-09-10 02:50:44,115 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ae94705f/2df6aa4853124e6f8d937f193e70daf4/FLAG41e3ad60c [2019-09-10 02:50:44,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ae94705f/2df6aa4853124e6f8d937f193e70daf4 [2019-09-10 02:50:44,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:50:44,414 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:50:44,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:44,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:50:44,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:50:44,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:44" (1/1) ... [2019-09-10 02:50:44,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cc9a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:44, skipping insertion in model container [2019-09-10 02:50:44,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:44" (1/1) ... [2019-09-10 02:50:44,431 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:50:44,507 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:50:45,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:45,047 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:50:45,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:45,188 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:50:45,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:45 WrapperNode [2019-09-10 02:50:45,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:45,190 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:50:45,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:50:45,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:50:45,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:45" (1/1) ... [2019-09-10 02:50:45,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:45" (1/1) ... [2019-09-10 02:50:45,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:45" (1/1) ... [2019-09-10 02:50:45,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:45" (1/1) ... [2019-09-10 02:50:45,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:45" (1/1) ... [2019-09-10 02:50:45,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:45" (1/1) ... [2019-09-10 02:50:45,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:45" (1/1) ... [2019-09-10 02:50:45,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:50:45,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:50:45,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:50:45,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:50:45,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:45,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:50:45,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:50:45,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:45,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-10 02:50:45,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-10 02:50:45,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-10 02:50:45,393 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:50:45,393 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:50:45,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:50:45,393 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:50:45,394 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:50:45,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:45,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:45,395 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:45,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:50:45,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:50:45,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:50:45,397 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:50:45,397 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:50:45,397 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:50:45,398 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-10 02:50:45,398 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:50:45,398 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:50:45,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:50:45,399 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:50:45,399 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:50:45,399 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-10 02:50:45,400 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:50:45,400 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:50:45,400 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:50:45,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:50:45,401 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:50:45,401 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:50:45,401 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:50:45,401 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:50:45,401 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:50:45,401 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:50:45,401 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:50:45,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:50:45,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:50:45,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:50:45,403 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:50:45,403 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:50:45,403 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:50:45,403 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:50:45,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-10 02:50:45,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-10 02:50:45,403 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-10 02:50:45,404 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:50:45,404 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:50:45,404 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:50:45,404 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:50:45,404 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:50:45,404 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:50:45,405 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:50:45,405 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:50:45,405 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:50:45,405 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:50:45,405 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:50:45,405 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:50:45,405 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:50:45,405 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:50:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:50:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:50:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:50:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:50:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:50:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:50:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:50:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:45,407 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:50:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:50:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:50:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:50:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:50:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:50:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:50:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:50:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:50:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:50:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-10 02:50:45,410 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:50:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-10 02:50:45,411 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:50:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-10 02:50:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:50:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:50:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:50:45,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:50:46,431 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:50:46,453 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:50:46,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:46 BoogieIcfgContainer [2019-09-10 02:50:46,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:50:46,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:50:46,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:50:46,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:50:46,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:50:44" (1/3) ... [2019-09-10 02:50:46,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2be14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:46, skipping insertion in model container [2019-09-10 02:50:46,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:45" (2/3) ... [2019-09-10 02:50:46,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e2be14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:46, skipping insertion in model container [2019-09-10 02:50:46,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:46" (3/3) ... [2019-09-10 02:50:46,463 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product14.cil.c [2019-09-10 02:50:46,473 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:50:46,481 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:50:46,498 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:50:46,531 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:50:46,531 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:50:46,531 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:50:46,531 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:50:46,532 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:50:46,532 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:50:46,532 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:50:46,532 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:50:46,552 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2019-09-10 02:50:46,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 02:50:46,565 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:46,566 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:46,569 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:46,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:46,574 INFO L82 PathProgramCache]: Analyzing trace with hash -2005015922, now seen corresponding path program 1 times [2019-09-10 02:50:46,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:46,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:46,621 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:46,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:46,622 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:46,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:50:46,955 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:46,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:50:46,956 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:46,964 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:46,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:46,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:46,985 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2019-09-10 02:50:47,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:47,016 INFO L93 Difference]: Finished difference Result 127 states and 146 transitions. [2019-09-10 02:50:47,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:47,017 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-10 02:50:47,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:47,029 INFO L225 Difference]: With dead ends: 127 [2019-09-10 02:50:47,029 INFO L226 Difference]: Without dead ends: 116 [2019-09-10 02:50:47,031 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:47,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-09-10 02:50:47,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-09-10 02:50:47,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-09-10 02:50:47,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2019-09-10 02:50:47,082 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 59 [2019-09-10 02:50:47,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:47,083 INFO L475 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2019-09-10 02:50:47,083 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:47,083 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2019-09-10 02:50:47,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 02:50:47,087 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:47,087 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:47,088 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:47,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:47,088 INFO L82 PathProgramCache]: Analyzing trace with hash 462950838, now seen corresponding path program 1 times [2019-09-10 02:50:47,088 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:47,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:47,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:47,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:47,090 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:47,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:47,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:50:47,237 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:47,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:47,237 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:47,239 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:47,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:47,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:47,240 INFO L87 Difference]: Start difference. First operand 116 states and 134 transitions. Second operand 3 states. [2019-09-10 02:50:47,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:47,254 INFO L93 Difference]: Finished difference Result 107 states and 122 transitions. [2019-09-10 02:50:47,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:47,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-10 02:50:47,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:47,257 INFO L225 Difference]: With dead ends: 107 [2019-09-10 02:50:47,258 INFO L226 Difference]: Without dead ends: 107 [2019-09-10 02:50:47,259 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:47,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-09-10 02:50:47,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-09-10 02:50:47,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-09-10 02:50:47,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 122 transitions. [2019-09-10 02:50:47,271 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 122 transitions. Word has length 60 [2019-09-10 02:50:47,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:47,272 INFO L475 AbstractCegarLoop]: Abstraction has 107 states and 122 transitions. [2019-09-10 02:50:47,272 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:47,272 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 122 transitions. [2019-09-10 02:50:47,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-10 02:50:47,275 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:47,275 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:47,275 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:47,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:47,276 INFO L82 PathProgramCache]: Analyzing trace with hash -152361795, now seen corresponding path program 1 times [2019-09-10 02:50:47,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:47,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:47,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:47,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:47,279 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:47,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:47,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:50:47,448 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:47,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:50:47,449 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:47,449 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:50:47,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:50:47,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:50:47,450 INFO L87 Difference]: Start difference. First operand 107 states and 122 transitions. Second operand 7 states. [2019-09-10 02:50:47,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:47,783 INFO L93 Difference]: Finished difference Result 107 states and 121 transitions. [2019-09-10 02:50:47,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:50:47,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-10 02:50:47,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:47,789 INFO L225 Difference]: With dead ends: 107 [2019-09-10 02:50:47,790 INFO L226 Difference]: Without dead ends: 107 [2019-09-10 02:50:47,790 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:47,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2019-09-10 02:50:47,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2019-09-10 02:50:47,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2019-09-10 02:50:47,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 121 transitions. [2019-09-10 02:50:47,817 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 121 transitions. Word has length 65 [2019-09-10 02:50:47,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:47,822 INFO L475 AbstractCegarLoop]: Abstraction has 107 states and 121 transitions. [2019-09-10 02:50:47,822 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:50:47,822 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 121 transitions. [2019-09-10 02:50:47,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-10 02:50:47,824 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:47,825 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:47,825 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:47,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:47,831 INFO L82 PathProgramCache]: Analyzing trace with hash -118162915, now seen corresponding path program 1 times [2019-09-10 02:50:47,831 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:47,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:47,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:47,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:47,832 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:47,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:48,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:50:48,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:48,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:50:48,029 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:48,029 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:50:48,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:50:48,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:50:48,030 INFO L87 Difference]: Start difference. First operand 107 states and 121 transitions. Second operand 7 states. [2019-09-10 02:50:48,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:48,441 INFO L93 Difference]: Finished difference Result 85 states and 93 transitions. [2019-09-10 02:50:48,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:50:48,442 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-09-10 02:50:48,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:48,443 INFO L225 Difference]: With dead ends: 85 [2019-09-10 02:50:48,446 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:50:48,446 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-10 02:50:48,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:50:48,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:50:48,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:50:48,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:50:48,448 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2019-09-10 02:50:48,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:48,448 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:50:48,450 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:50:48,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:50:48,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:50:48,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:50:48 BoogieIcfgContainer [2019-09-10 02:50:48,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:50:48,468 INFO L168 Benchmark]: Toolchain (without parser) took 4050.54 ms. Allocated memory was 132.6 MB in the beginning and 262.7 MB in the end (delta: 130.0 MB). Free memory was 87.3 MB in the beginning and 190.1 MB in the end (delta: -102.8 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:48,469 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 132.6 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-10 02:50:48,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.85 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 87.3 MB in the beginning and 164.5 MB in the end (delta: -77.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:48,478 INFO L168 Benchmark]: Boogie Preprocessor took 114.63 ms. Allocated memory is still 199.2 MB. Free memory was 164.5 MB in the beginning and 159.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:48,479 INFO L168 Benchmark]: RCFGBuilder took 1147.98 ms. Allocated memory was 199.2 MB in the beginning and 222.8 MB in the end (delta: 23.6 MB). Free memory was 159.8 MB in the beginning and 193.7 MB in the end (delta: -33.9 MB). Peak memory consumption was 90.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:48,480 INFO L168 Benchmark]: TraceAbstraction took 2006.11 ms. Allocated memory was 222.8 MB in the beginning and 262.7 MB in the end (delta: 39.8 MB). Free memory was 193.7 MB in the beginning and 190.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:48,490 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 132.6 MB. Free memory is still 106.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.85 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 87.3 MB in the beginning and 164.5 MB in the end (delta: -77.2 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.63 ms. Allocated memory is still 199.2 MB. Free memory was 164.5 MB in the beginning and 159.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1147.98 ms. Allocated memory was 199.2 MB in the beginning and 222.8 MB in the end (delta: 23.6 MB). Free memory was 159.8 MB in the beginning and 193.7 MB in the end (delta: -33.9 MB). Peak memory consumption was 90.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2006.11 ms. Allocated memory was 222.8 MB in the beginning and 262.7 MB in the end (delta: 39.8 MB). Free memory was 193.7 MB in the beginning and 190.1 MB in the end (delta: 3.6 MB). Peak memory consumption was 43.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 916]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 225 locations, 1 error locations. SAFE Result, 1.9s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 455 SDtfs, 206 SDslu, 471 SDs, 0 SdLazy, 296 SolverSat, 70 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=167occurred in iteration=0, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 257 NumberOfCodeBlocks, 257 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 27417 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...