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_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:32,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:32,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:32,335 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:32,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:32,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:32,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:32,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:32,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:32,342 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:32,343 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:32,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:32,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:32,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:32,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:32,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:32,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:32,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:32,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:32,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:32,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:32,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:32,359 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:32,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:32,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:32,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:32,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:32,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:32,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:32,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:32,365 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:32,366 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:32,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:32,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:32,369 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:32,369 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:32,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:32,370 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:32,370 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:32,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:32,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:32,373 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 13:29:32,388 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:32,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:32,389 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:32,389 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:32,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:32,390 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:32,390 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:32,390 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:32,391 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:32,391 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:32,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:32,392 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:32,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:32,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:32,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:32,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:32,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:32,393 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:32,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:32,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:32,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:32,394 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:32,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:32,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:32,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:32,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:32,395 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:32,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:32,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:32,395 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:32,426 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:32,437 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:32,441 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:32,442 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:32,443 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:32,443 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product16.cil.c [2019-09-20 13:29:32,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee9f9e524/23efa5b6996443abba089c0bd3c5c983/FLAGcbfb51b95 [2019-09-20 13:29:33,086 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:33,087 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product16.cil.c [2019-09-20 13:29:33,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee9f9e524/23efa5b6996443abba089c0bd3c5c983/FLAGcbfb51b95 [2019-09-20 13:29:33,360 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee9f9e524/23efa5b6996443abba089c0bd3c5c983 [2019-09-20 13:29:33,372 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:33,374 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:33,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:33,380 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:33,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:33,385 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:33" (1/1) ... [2019-09-20 13:29:33,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e757327 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:33, skipping insertion in model container [2019-09-20 13:29:33,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:33" (1/1) ... [2019-09-20 13:29:33,396 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:33,466 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:33,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:34,011 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:34,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:34,182 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:34,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34 WrapperNode [2019-09-20 13:29:34,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:34,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:34,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:34,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:34,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (1/1) ... [2019-09-20 13:29:34,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:34,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:34,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:34,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:34,274 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (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 13:29:34,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:34,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:34,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:34,333 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:29:34,333 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:29:34,334 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:29:34,334 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:29:34,334 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:29:34,334 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:29:34,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:34,334 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:34,334 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:29:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:29:34,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:29:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:34,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:29:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:29:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:29:34,337 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2019-09-20 13:29:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:29:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:29:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:29:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:29:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:29:34,338 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:29:34,339 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:29:34,339 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:34,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:34,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:34,339 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:34,339 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:29:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:29:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:29:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:29:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:29:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:29:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:34,340 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:29:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-20 13:29:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:34,341 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:29:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:29:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:29:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:29:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:34,342 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:29:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:34,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:34,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:29:34,345 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:29:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:29:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:29:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:29:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:29:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:29:34,346 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2019-09-20 13:29:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:34,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:35,418 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:35,419 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:29:35,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:35 BoogieIcfgContainer [2019-09-20 13:29:35,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:35,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:35,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:35,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:35,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:33" (1/3) ... [2019-09-20 13:29:35,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b0a2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:35, skipping insertion in model container [2019-09-20 13:29:35,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:34" (2/3) ... [2019-09-20 13:29:35,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b0a2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:35, skipping insertion in model container [2019-09-20 13:29:35,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:35" (3/3) ... [2019-09-20 13:29:35,429 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product16.cil.c [2019-09-20 13:29:35,439 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:35,449 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:35,466 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:35,496 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:35,496 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:35,496 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:35,496 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:35,497 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:35,497 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:35,497 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:35,497 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:35,518 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2019-09-20 13:29:35,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-20 13:29:35,531 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:35,532 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 13:29:35,535 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:35,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:35,541 INFO L82 PathProgramCache]: Analyzing trace with hash 841763169, now seen corresponding path program 1 times [2019-09-20 13:29:35,543 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:35,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:35,602 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:35,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:35,603 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:35,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:35,907 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 13:29:35,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:35,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:35,910 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:35,916 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:35,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:35,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:35,934 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2019-09-20 13:29:35,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:35,963 INFO L93 Difference]: Finished difference Result 120 states and 140 transitions. [2019-09-20 13:29:35,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:35,965 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-20 13:29:35,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:35,979 INFO L225 Difference]: With dead ends: 120 [2019-09-20 13:29:35,979 INFO L226 Difference]: Without dead ends: 109 [2019-09-20 13:29:35,981 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 13:29:36,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-09-20 13:29:36,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-09-20 13:29:36,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-09-20 13:29:36,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 128 transitions. [2019-09-20 13:29:36,037 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 128 transitions. Word has length 46 [2019-09-20 13:29:36,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:36,037 INFO L475 AbstractCegarLoop]: Abstraction has 109 states and 128 transitions. [2019-09-20 13:29:36,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:36,038 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 128 transitions. [2019-09-20 13:29:36,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-20 13:29:36,041 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:36,042 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 13:29:36,042 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:36,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:36,042 INFO L82 PathProgramCache]: Analyzing trace with hash -1716807413, now seen corresponding path program 1 times [2019-09-20 13:29:36,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:36,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:36,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,046 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:36,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:36,172 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 13:29:36,173 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:36,173 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:36,173 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:36,175 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:36,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:36,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:36,176 INFO L87 Difference]: Start difference. First operand 109 states and 128 transitions. Second operand 3 states. [2019-09-20 13:29:36,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:36,206 INFO L93 Difference]: Finished difference Result 100 states and 116 transitions. [2019-09-20 13:29:36,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:36,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-20 13:29:36,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:36,212 INFO L225 Difference]: With dead ends: 100 [2019-09-20 13:29:36,212 INFO L226 Difference]: Without dead ends: 100 [2019-09-20 13:29:36,214 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 13:29:36,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-09-20 13:29:36,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-09-20 13:29:36,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-09-20 13:29:36,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 116 transitions. [2019-09-20 13:29:36,240 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 116 transitions. Word has length 47 [2019-09-20 13:29:36,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:36,241 INFO L475 AbstractCegarLoop]: Abstraction has 100 states and 116 transitions. [2019-09-20 13:29:36,241 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:36,241 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 116 transitions. [2019-09-20 13:29:36,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:29:36,243 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:36,243 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:36,243 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:36,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:36,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1646650364, now seen corresponding path program 1 times [2019-09-20 13:29:36,244 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:36,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:36,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,247 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:36,456 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 13:29:36,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:36,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:36,457 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:36,458 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:36,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:36,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:36,458 INFO L87 Difference]: Start difference. First operand 100 states and 116 transitions. Second operand 7 states. [2019-09-20 13:29:36,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:36,889 INFO L93 Difference]: Finished difference Result 226 states and 272 transitions. [2019-09-20 13:29:36,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:29:36,890 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-20 13:29:36,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:36,894 INFO L225 Difference]: With dead ends: 226 [2019-09-20 13:29:36,894 INFO L226 Difference]: Without dead ends: 226 [2019-09-20 13:29:36,895 INFO L636 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 [2019-09-20 13:29:36,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2019-09-20 13:29:36,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 214. [2019-09-20 13:29:36,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2019-09-20 13:29:36,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 260 transitions. [2019-09-20 13:29:36,930 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 260 transitions. Word has length 52 [2019-09-20 13:29:36,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:36,931 INFO L475 AbstractCegarLoop]: Abstraction has 214 states and 260 transitions. [2019-09-20 13:29:36,931 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:36,931 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 260 transitions. [2019-09-20 13:29:36,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:29:36,937 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:36,937 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:29:36,938 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:36,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:36,943 INFO L82 PathProgramCache]: Analyzing trace with hash 385460171, now seen corresponding path program 1 times [2019-09-20 13:29:36,944 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:36,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:36,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:36,947 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:37,203 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 13:29:37,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:37,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:37,204 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:37,205 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:37,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:37,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:37,206 INFO L87 Difference]: Start difference. First operand 214 states and 260 transitions. Second operand 6 states. [2019-09-20 13:29:37,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:37,400 INFO L93 Difference]: Finished difference Result 389 states and 476 transitions. [2019-09-20 13:29:37,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:37,401 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-20 13:29:37,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:37,405 INFO L225 Difference]: With dead ends: 389 [2019-09-20 13:29:37,405 INFO L226 Difference]: Without dead ends: 389 [2019-09-20 13:29:37,406 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 13:29:37,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2019-09-20 13:29:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 383. [2019-09-20 13:29:37,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 383 states. [2019-09-20 13:29:37,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 470 transitions. [2019-09-20 13:29:37,466 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 470 transitions. Word has length 57 [2019-09-20 13:29:37,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:37,467 INFO L475 AbstractCegarLoop]: Abstraction has 383 states and 470 transitions. [2019-09-20 13:29:37,467 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:37,467 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 470 transitions. [2019-09-20 13:29:37,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-20 13:29:37,469 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:37,470 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] [2019-09-20 13:29:37,470 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:37,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:37,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1496116017, now seen corresponding path program 1 times [2019-09-20 13:29:37,471 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:37,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:37,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:37,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:37,474 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:37,602 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 13:29:37,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:37,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:29:37,603 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:37,603 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:29:37,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:29:37,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:29:37,604 INFO L87 Difference]: Start difference. First operand 383 states and 470 transitions. Second operand 7 states. [2019-09-20 13:29:37,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:37,942 INFO L93 Difference]: Finished difference Result 298 states and 345 transitions. [2019-09-20 13:29:37,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:37,945 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-20 13:29:37,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:37,945 INFO L225 Difference]: With dead ends: 298 [2019-09-20 13:29:37,946 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:37,946 INFO L636 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 [2019-09-20 13:29:37,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:37,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:37,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:37,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:37,947 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2019-09-20 13:29:37,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:37,947 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:37,947 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:29:37,948 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:37,948 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:37,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:37 BoogieIcfgContainer [2019-09-20 13:29:37,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:37,957 INFO L168 Benchmark]: Toolchain (without parser) took 4582.10 ms. Allocated memory was 133.2 MB in the beginning and 260.0 MB in the end (delta: 126.9 MB). Free memory was 88.4 MB in the beginning and 128.0 MB in the end (delta: -39.6 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:37,958 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 107.5 MB in the beginning and 107.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:37,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 803.49 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 88.2 MB in the beginning and 164.8 MB in the end (delta: -76.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:37,959 INFO L168 Benchmark]: Boogie Preprocessor took 89.14 ms. Allocated memory is still 199.8 MB. Free memory was 164.8 MB in the beginning and 160.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:37,960 INFO L168 Benchmark]: RCFGBuilder took 1147.65 ms. Allocated memory was 199.8 MB in the beginning and 224.9 MB in the end (delta: 25.2 MB). Free memory was 160.5 MB in the beginning and 193.0 MB in the end (delta: -32.5 MB). Peak memory consumption was 89.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:37,962 INFO L168 Benchmark]: TraceAbstraction took 2532.57 ms. Allocated memory was 224.9 MB in the beginning and 260.0 MB in the end (delta: 35.1 MB). Free memory was 193.0 MB in the beginning and 128.0 MB in the end (delta: 65.0 MB). Peak memory consumption was 100.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:37,965 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 107.5 MB in the beginning and 107.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 803.49 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 88.2 MB in the beginning and 164.8 MB in the end (delta: -76.6 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.14 ms. Allocated memory is still 199.8 MB. Free memory was 164.8 MB in the beginning and 160.5 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1147.65 ms. Allocated memory was 199.8 MB in the beginning and 224.9 MB in the end (delta: 25.2 MB). Free memory was 160.5 MB in the beginning and 193.0 MB in the end (delta: -32.5 MB). Peak memory consumption was 89.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2532.57 ms. Allocated memory was 224.9 MB in the beginning and 260.0 MB in the end (delta: 35.1 MB). Free memory was 193.0 MB in the beginning and 128.0 MB in the end (delta: 65.0 MB). Peak memory consumption was 100.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 295]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 221 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 606 SDtfs, 346 SDslu, 1154 SDs, 0 SdLazy, 415 SolverSat, 71 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=383occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 263 NumberOfCodeBlocks, 263 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 25848 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...