/usr/bin/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:04:07,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:04:07,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:04:07,222 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:04:07,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:04:07,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:04:07,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:04:07,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:04:07,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:04:07,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:04:07,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:04:07,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:04:07,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:04:07,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:04:07,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:04:07,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:04:07,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:04:07,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:04:07,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:04:07,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:04:07,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:04:07,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:04:07,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:04:07,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:04:07,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:04:07,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:04:07,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:04:07,278 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:04:07,279 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:04:07,280 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:04:07,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:04:07,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:04:07,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:04:07,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:04:07,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:04:07,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:04:07,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:04:07,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:04:07,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:04:07,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:04:07,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:04:07,288 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:04:07,307 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:04:07,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:04:07,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:04:07,309 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:04:07,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:04:07,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:04:07,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:04:07,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:04:07,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:04:07,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:04:07,312 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:04:07,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:04:07,312 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:04:07,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:04:07,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:04:07,313 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:04:07,313 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:04:07,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:04:07,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:04:07,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:04:07,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:04:07,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:04:07,315 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:04:07,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:04:07,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:04:07,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:04:07,604 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:04:07,604 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:04:07,605 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-08-22 18:04:07,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be138dc2/0abe15a6e77342e8b61e117eff162dfd/FLAGc80812832 [2020-08-22 18:04:08,151 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:04:08,152 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-08-22 18:04:08,163 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be138dc2/0abe15a6e77342e8b61e117eff162dfd/FLAGc80812832 [2020-08-22 18:04:08,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9be138dc2/0abe15a6e77342e8b61e117eff162dfd [2020-08-22 18:04:08,518 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:04:08,520 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:04:08,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:04:08,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:04:08,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:04:08,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:04:08" (1/1) ... [2020-08-22 18:04:08,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc0e258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:08, skipping insertion in model container [2020-08-22 18:04:08,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:04:08" (1/1) ... [2020-08-22 18:04:08,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:04:08,578 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:04:09,013 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:04:09,032 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:04:09,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:04:09,137 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:04:09,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:09 WrapperNode [2020-08-22 18:04:09,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:04:09,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:04:09,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:04:09,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:04:09,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:09" (1/1) ... [2020-08-22 18:04:09,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:09" (1/1) ... [2020-08-22 18:04:09,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:09" (1/1) ... [2020-08-22 18:04:09,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:09" (1/1) ... [2020-08-22 18:04:09,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:09" (1/1) ... [2020-08-22 18:04:09,219 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:09" (1/1) ... [2020-08-22 18:04:09,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:09" (1/1) ... [2020-08-22 18:04:09,248 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:04:09,249 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:04:09,249 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:04:09,249 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:04:09,253 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:09" (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 [2020-08-22 18:04:09,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:04:09,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:04:09,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:04:09,318 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:04:09,318 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:04:09,318 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:04:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:04:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:04:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:04:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:04:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:04:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:04:09,320 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:04:09,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:04:09,320 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:04:09,320 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:04:09,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:04:09,320 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:04:09,320 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:04:09,321 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:04:09,321 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 18:04:09,321 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:04:09,321 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-08-22 18:04:09,321 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:04:09,321 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:04:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:04:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:04:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:04:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:04:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:04:09,322 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:04:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:04:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:04:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:04:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:04:09,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:04:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:04:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:04:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:04:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:04:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:04:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:04:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:04:09,324 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:04:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:04:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:04:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:04:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:04:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:04:09,325 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:04:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:04:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:04:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:04:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:04:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:04:09,326 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:04:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:04:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:04:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:04:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:04:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:04:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:04:09,327 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:04:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:04:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-08-22 18:04:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:04:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-08-22 18:04:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:04:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:04:09,328 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:04:09,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:04:09,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:04:09,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:04:09,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:04:09,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:04:09,329 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:04:09,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:04:09,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:04:09,330 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:04:09,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:04:09,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:04:09,330 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:04:09,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:04:09,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:04:09,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:04:09,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:04:10,427 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:04:10,428 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:04:10,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:04:10 BoogieIcfgContainer [2020-08-22 18:04:10,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:04:10,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:04:10,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:04:10,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:04:10,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:04:08" (1/3) ... [2020-08-22 18:04:10,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b208715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:04:10, skipping insertion in model container [2020-08-22 18:04:10,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:09" (2/3) ... [2020-08-22 18:04:10,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b208715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:04:10, skipping insertion in model container [2020-08-22 18:04:10,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:04:10" (3/3) ... [2020-08-22 18:04:10,442 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-08-22 18:04:10,453 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:04:10,462 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:04:10,476 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:04:10,498 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:04:10,499 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:04:10,499 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:04:10,499 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:04:10,499 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:04:10,500 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:04:10,500 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:04:10,500 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:04:10,520 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-08-22 18:04:10,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 18:04:10,541 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:10,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:04:10,543 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:10,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:10,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1381778522, now seen corresponding path program 1 times [2020-08-22 18:04:10,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:10,556 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [604124254] [2020-08-22 18:04:10,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:10,618 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:11,227 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:11,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:11,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:11,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:11,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:11,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:11,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:11,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:11,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:11,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:04:11,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:11,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:04:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:11,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:04:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:11,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [604124254] [2020-08-22 18:04:11,477 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:11,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:04:11,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815276326] [2020-08-22 18:04:11,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:04:11,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:11,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:04:11,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:04:11,504 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 3 states. [2020-08-22 18:04:12,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:12,720 INFO L93 Difference]: Finished difference Result 413 states and 495 transitions. [2020-08-22 18:04:12,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:04:12,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 18:04:12,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:12,745 INFO L225 Difference]: With dead ends: 413 [2020-08-22 18:04:12,746 INFO L226 Difference]: Without dead ends: 263 [2020-08-22 18:04:12,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:04:12,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2020-08-22 18:04:12,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 224. [2020-08-22 18:04:12,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-08-22 18:04:12,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 242 transitions. [2020-08-22 18:04:12,943 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 242 transitions. Word has length 153 [2020-08-22 18:04:12,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:12,944 INFO L479 AbstractCegarLoop]: Abstraction has 224 states and 242 transitions. [2020-08-22 18:04:12,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:04:12,945 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 242 transitions. [2020-08-22 18:04:12,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 18:04:12,950 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:12,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:04:12,950 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:04:12,951 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:12,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:12,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1416646641, now seen corresponding path program 1 times [2020-08-22 18:04:12,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:12,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606735944] [2020-08-22 18:04:12,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:12,955 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:13,285 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:13,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:13,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:13,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:13,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:13,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:13,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:13,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 18:04:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:13,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 18:04:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:13,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 18:04:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:13,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:13,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606735944] [2020-08-22 18:04:13,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:13,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:04:13,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878880987] [2020-08-22 18:04:13,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:04:13,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:13,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:04:13,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:04:13,387 INFO L87 Difference]: Start difference. First operand 224 states and 242 transitions. Second operand 4 states. [2020-08-22 18:04:13,985 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:04:14,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:14,719 INFO L93 Difference]: Finished difference Result 330 states and 370 transitions. [2020-08-22 18:04:14,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:04:14,719 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 18:04:14,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:14,726 INFO L225 Difference]: With dead ends: 330 [2020-08-22 18:04:14,726 INFO L226 Difference]: Without dead ends: 246 [2020-08-22 18:04:14,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:04:14,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-08-22 18:04:14,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 214. [2020-08-22 18:04:14,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-22 18:04:14,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 229 transitions. [2020-08-22 18:04:14,821 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 229 transitions. Word has length 154 [2020-08-22 18:04:14,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:14,823 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 229 transitions. [2020-08-22 18:04:14,823 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:04:14,823 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 229 transitions. [2020-08-22 18:04:14,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-08-22 18:04:14,829 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:14,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:04:14,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:04:14,830 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:14,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:14,830 INFO L82 PathProgramCache]: Analyzing trace with hash 448801326, now seen corresponding path program 1 times [2020-08-22 18:04:14,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:14,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [616323706] [2020-08-22 18:04:14,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:14,834 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:15,277 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:15,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:15,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:15,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:15,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:15,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:15,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:15,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:04:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:15,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:04:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:15,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-08-22 18:04:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:15,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:15,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [616323706] [2020-08-22 18:04:15,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:15,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:04:15,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239480555] [2020-08-22 18:04:15,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:04:15,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:15,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:04:15,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:04:15,538 INFO L87 Difference]: Start difference. First operand 214 states and 229 transitions. Second operand 9 states. [2020-08-22 18:04:16,074 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:04:16,415 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:04:16,653 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:04:16,884 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:17,169 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:04:17,392 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:18,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:18,553 INFO L93 Difference]: Finished difference Result 350 states and 395 transitions. [2020-08-22 18:04:18,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 18:04:18,554 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-08-22 18:04:18,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:18,560 INFO L225 Difference]: With dead ends: 350 [2020-08-22 18:04:18,560 INFO L226 Difference]: Without dead ends: 246 [2020-08-22 18:04:18,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-08-22 18:04:18,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-08-22 18:04:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 214. [2020-08-22 18:04:18,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-08-22 18:04:18,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 228 transitions. [2020-08-22 18:04:18,668 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 228 transitions. Word has length 163 [2020-08-22 18:04:18,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:18,670 INFO L479 AbstractCegarLoop]: Abstraction has 214 states and 228 transitions. [2020-08-22 18:04:18,670 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:04:18,670 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 228 transitions. [2020-08-22 18:04:18,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-08-22 18:04:18,672 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:18,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:04:18,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:04:18,673 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:18,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:18,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1282068038, now seen corresponding path program 1 times [2020-08-22 18:04:18,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:18,675 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963966699] [2020-08-22 18:04:18,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:18,677 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:19,013 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:19,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:19,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:19,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:19,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:19,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:19,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-08-22 18:04:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:19,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:04:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:19,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 18:04:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:19,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-08-22 18:04:19,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:19,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-08-22 18:04:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:19,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:19,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963966699] [2020-08-22 18:04:19,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:19,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:04:19,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503409361] [2020-08-22 18:04:19,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:04:19,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:19,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:04:19,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:04:19,168 INFO L87 Difference]: Start difference. First operand 214 states and 228 transitions. Second operand 9 states. [2020-08-22 18:04:19,663 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:04:21,246 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:21,526 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:04:21,771 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:22,019 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:04:22,257 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:22,700 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:04:22,968 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:04:23,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:23,245 INFO L93 Difference]: Finished difference Result 489 states and 580 transitions. [2020-08-22 18:04:23,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 18:04:23,246 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-08-22 18:04:23,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:23,251 INFO L225 Difference]: With dead ends: 489 [2020-08-22 18:04:23,251 INFO L226 Difference]: Without dead ends: 385 [2020-08-22 18:04:23,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:04:23,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-08-22 18:04:23,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 310. [2020-08-22 18:04:23,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-08-22 18:04:23,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 341 transitions. [2020-08-22 18:04:23,360 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 341 transitions. Word has length 171 [2020-08-22 18:04:23,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:23,361 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 341 transitions. [2020-08-22 18:04:23,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:04:23,361 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 341 transitions. [2020-08-22 18:04:23,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-08-22 18:04:23,364 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:23,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:04:23,365 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:04:23,365 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:23,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:23,365 INFO L82 PathProgramCache]: Analyzing trace with hash -741228108, now seen corresponding path program 1 times [2020-08-22 18:04:23,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:23,366 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [965098270] [2020-08-22 18:04:23,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:23,368 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,626 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:04:23,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:04:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:04:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:04:23,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:04:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:04:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-08-22 18:04:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:04:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-22 18:04:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 18:04:23,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-08-22 18:04:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-08-22 18:04:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 18:04:23,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:04:23,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:04:23,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [965098270] [2020-08-22 18:04:23,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:04:23,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:04:23,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629141571] [2020-08-22 18:04:23,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:04:23,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:04:23,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:04:23,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:04:23,742 INFO L87 Difference]: Start difference. First operand 310 states and 341 transitions. Second operand 6 states. [2020-08-22 18:04:24,269 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:04:24,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:04:24,838 INFO L93 Difference]: Finished difference Result 479 states and 545 transitions. [2020-08-22 18:04:24,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 18:04:24,842 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2020-08-22 18:04:24,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:04:24,845 INFO L225 Difference]: With dead ends: 479 [2020-08-22 18:04:24,845 INFO L226 Difference]: Without dead ends: 279 [2020-08-22 18:04:24,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:04:24,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-08-22 18:04:24,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 258. [2020-08-22 18:04:24,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2020-08-22 18:04:24,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 273 transitions. [2020-08-22 18:04:24,914 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 273 transitions. Word has length 181 [2020-08-22 18:04:24,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:04:24,914 INFO L479 AbstractCegarLoop]: Abstraction has 258 states and 273 transitions. [2020-08-22 18:04:24,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:04:24,915 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 273 transitions. [2020-08-22 18:04:24,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-08-22 18:04:24,917 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:24,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:04:24,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:04:24,918 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:24,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:24,918 INFO L82 PathProgramCache]: Analyzing trace with hash -426197068, now seen corresponding path program 1 times [2020-08-22 18:04:24,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:24,919 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557478223] [2020-08-22 18:04:24,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:24,921 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:04:24,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:04:24,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:04:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:04:25,025 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:04:25,174 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:04:25,174 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:04:25,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 18:04:25,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:04:25 BoogieIcfgContainer [2020-08-22 18:04:25,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:04:25,200 INFO L168 Benchmark]: Toolchain (without parser) took 16679.91 ms. Allocated memory was 140.0 MB in the beginning and 544.2 MB in the end (delta: 404.2 MB). Free memory was 103.3 MB in the beginning and 151.6 MB in the end (delta: -48.3 MB). Peak memory consumption was 356.0 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:25,201 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 140.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 18:04:25,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.83 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 103.1 MB in the beginning and 173.2 MB in the end (delta: -70.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:25,202 INFO L168 Benchmark]: Boogie Preprocessor took 109.68 ms. Allocated memory is still 203.9 MB. Free memory was 173.2 MB in the beginning and 167.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:25,203 INFO L168 Benchmark]: RCFGBuilder took 1185.80 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 167.3 MB in the beginning and 177.4 MB in the end (delta: -10.1 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:25,204 INFO L168 Benchmark]: TraceAbstraction took 14762.32 ms. Allocated memory was 236.5 MB in the beginning and 544.2 MB in the end (delta: 307.8 MB). Free memory was 177.4 MB in the beginning and 151.6 MB in the end (delta: 25.9 MB). Peak memory consumption was 333.6 MB. Max. memory is 7.1 GB. [2020-08-22 18:04:25,208 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 140.0 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 616.83 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 103.1 MB in the beginning and 173.2 MB in the end (delta: -70.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.68 ms. Allocated memory is still 203.9 MB. Free memory was 173.2 MB in the beginning and 167.3 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1185.80 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 167.3 MB in the beginning and 177.4 MB in the end (delta: -10.1 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14762.32 ms. Allocated memory was 236.5 MB in the beginning and 544.2 MB in the end (delta: 307.8 MB). Free memory was 177.4 MB in the beginning and 151.6 MB in the end (delta: 25.9 MB). Peak memory consumption was 333.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L173] int cleanupTimeShifts = 4; [L275] int pumpRunning = 0; [L276] int systemActive = 1; [L694] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L155] int retValue_acc ; [L158] retValue_acc = 1 [L159] return (retValue_acc); [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L243] CALL test() [L461] int splverifierCounter ; [L462] int tmp ; [L463] int tmp___0 ; [L464] int tmp___1 ; [L465] int tmp___2 ; [L468] splverifierCounter = 0 [L470] COND TRUE 1 [L472] COND TRUE splverifierCounter < 4 [L478] tmp = __VERIFIER_nondet_int() [L480] COND TRUE \read(tmp) [L482] CALL waterRise() [L64] COND TRUE waterLevel < 2 [L65] waterLevel = waterLevel + 1 [L482] RET waterRise() [L488] tmp___0 = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp___0)) [L498] tmp___2 = __VERIFIER_nondet_int() [L500] COND TRUE \read(tmp___2) [L513] CALL timeShift() [L283] COND FALSE !(\read(pumpRunning)) [L290] COND TRUE \read(systemActive) [L292] CALL processEnvironment() [L312] int tmp ; [L315] COND FALSE !(\read(pumpRunning)) [L330] FCALL processEnvironment__wrappee__methaneQuery() [L292] RET processEnvironment() [L298] CALL __utac_acc__Specification3_spec__1() [L427] int tmp ; [L428] int tmp___0 ; [L429] int tmp___1 ; [L433] CALL, EXPR isMethaneLevelCritical() [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] return (retValue_acc); [L433] RET, EXPR isMethaneLevelCritical() [L433] tmp = isMethaneLevelCritical() [L435] COND FALSE !(\read(tmp)) [L439] CALL, EXPR getWaterLevel() [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] return (retValue_acc); [L439] RET, EXPR getWaterLevel() [L439] tmp___0 = getWaterLevel() [L441] COND TRUE tmp___0 == 2 [L443] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L443] RET, EXPR isPumpRunning() [L443] tmp___1 = isPumpRunning() [L445] COND FALSE !(\read(tmp___1)) [L449] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 599 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 996 SDtfs, 1306 SDslu, 1220 SDs, 0 SdLazy, 2323 SolverSat, 391 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 105 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=310occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 199 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...