java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:30,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:30,206 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:30,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:30,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:30,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:30,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:30,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:30,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:30,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:30,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:30,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:30,240 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:30,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:30,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:30,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:30,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:30,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:30,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:30,248 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:30,250 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:30,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:30,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:30,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:30,259 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:30,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:30,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:30,261 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:30,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:30,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:30,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:30,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:30,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:30,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:30,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:30,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:30,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:30,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:30,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:30,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:30,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:30,278 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 13:31:30,297 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:30,298 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:30,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:30,298 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:30,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:30,299 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:30,299 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:30,300 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:30,300 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:30,300 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:30,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:30,301 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:30,301 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:30,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:30,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:30,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:30,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:30,302 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:30,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:30,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:30,303 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:30,303 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:30,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:30,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:30,304 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:30,304 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:30,304 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:30,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:30,305 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:30,305 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:30,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:30,367 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:30,370 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:30,372 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:30,372 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:30,373 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c [2019-09-20 13:31:30,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62fedc780/abc0fa9a00a04cb7a2981e78554aa630/FLAG70f8b0756 [2019-09-20 13:31:30,994 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:30,995 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c [2019-09-20 13:31:31,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62fedc780/abc0fa9a00a04cb7a2981e78554aa630/FLAG70f8b0756 [2019-09-20 13:31:31,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62fedc780/abc0fa9a00a04cb7a2981e78554aa630 [2019-09-20 13:31:31,345 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:31,346 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:31,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:31,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:31,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:31,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:31" (1/1) ... [2019-09-20 13:31:31,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35ffec5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:31, skipping insertion in model container [2019-09-20 13:31:31,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:31" (1/1) ... [2019-09-20 13:31:31,364 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:31,409 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:31,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:31,839 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:31,994 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:32,036 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:32,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:32 WrapperNode [2019-09-20 13:31:32,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:32,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:32,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:32,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:32,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:32" (1/1) ... [2019-09-20 13:31:32,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:32" (1/1) ... [2019-09-20 13:31:32,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:32" (1/1) ... [2019-09-20 13:31:32,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:32" (1/1) ... [2019-09-20 13:31:32,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:32" (1/1) ... [2019-09-20 13:31:32,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:32" (1/1) ... [2019-09-20 13:31:32,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:32" (1/1) ... [2019-09-20 13:31:32,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:32,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:32,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:32,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:32,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:32" (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 13:31:32,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:32,266 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:32,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:32,268 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:32,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:32,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:32,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:32,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:32,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:32,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:32,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:32,270 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:31:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-09-20 13:31:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:32,273 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:32,273 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:32,273 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:32,273 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:32,273 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:32,273 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:32,273 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:32,274 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:32,274 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:32,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:32,274 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:32,274 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:32,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:32,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:32,278 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:32,279 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:32,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:32,281 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:32,282 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:31:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-09-20 13:31:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:32,283 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:32,284 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:32,285 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:32,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:32,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:33,348 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:33,349 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:33,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:33 BoogieIcfgContainer [2019-09-20 13:31:33,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:33,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:33,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:33,355 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:33,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:31" (1/3) ... [2019-09-20 13:31:33,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3097182e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:33, skipping insertion in model container [2019-09-20 13:31:33,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:32" (2/3) ... [2019-09-20 13:31:33,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3097182e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:33, skipping insertion in model container [2019-09-20 13:31:33,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:33" (3/3) ... [2019-09-20 13:31:33,359 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product45.cil.c [2019-09-20 13:31:33,370 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:33,380 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:33,397 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:33,425 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:33,425 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:33,425 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:33,425 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:33,426 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:33,426 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:33,426 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:33,426 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:33,447 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2019-09-20 13:31:33,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:33,461 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:33,462 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:33,465 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:33,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:33,471 INFO L82 PathProgramCache]: Analyzing trace with hash -587014934, now seen corresponding path program 1 times [2019-09-20 13:31:33,473 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:33,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:33,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:33,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:33,528 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:33,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:33,851 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:33,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:33,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:33,854 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:33,861 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:33,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:33,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:33,881 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 2 states. [2019-09-20 13:31:33,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:33,927 INFO L93 Difference]: Finished difference Result 154 states and 180 transitions. [2019-09-20 13:31:33,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:33,928 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:33,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:33,941 INFO L225 Difference]: With dead ends: 154 [2019-09-20 13:31:33,942 INFO L226 Difference]: Without dead ends: 143 [2019-09-20 13:31:33,945 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 13:31:33,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-09-20 13:31:34,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2019-09-20 13:31:34,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-09-20 13:31:34,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2019-09-20 13:31:34,033 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 59 [2019-09-20 13:31:34,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:34,034 INFO L475 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2019-09-20 13:31:34,034 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2019-09-20 13:31:34,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:34,043 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:34,044 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:34,044 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:34,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:34,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1620614948, now seen corresponding path program 1 times [2019-09-20 13:31:34,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:34,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:34,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:34,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:34,050 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:34,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:34,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:34,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:34,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:34,182 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:34,184 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:34,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:34,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:34,185 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 3 states. [2019-09-20 13:31:34,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:34,201 INFO L93 Difference]: Finished difference Result 134 states and 156 transitions. [2019-09-20 13:31:34,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:34,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:34,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:34,204 INFO L225 Difference]: With dead ends: 134 [2019-09-20 13:31:34,205 INFO L226 Difference]: Without dead ends: 134 [2019-09-20 13:31:34,205 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 13:31:34,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-09-20 13:31:34,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-09-20 13:31:34,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-09-20 13:31:34,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2019-09-20 13:31:34,217 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 60 [2019-09-20 13:31:34,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:34,218 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2019-09-20 13:31:34,218 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:34,218 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2019-09-20 13:31:34,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-20 13:31:34,221 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:34,221 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:34,221 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:34,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:34,222 INFO L82 PathProgramCache]: Analyzing trace with hash 272490530, now seen corresponding path program 1 times [2019-09-20 13:31:34,222 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:34,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:34,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:34,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:34,225 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:34,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:34,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:34,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:34,355 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:34,356 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:34,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:34,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:34,357 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand 7 states. [2019-09-20 13:31:34,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:34,699 INFO L93 Difference]: Finished difference Result 134 states and 155 transitions. [2019-09-20 13:31:34,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:34,699 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2019-09-20 13:31:34,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:34,702 INFO L225 Difference]: With dead ends: 134 [2019-09-20 13:31:34,702 INFO L226 Difference]: Without dead ends: 134 [2019-09-20 13:31:34,703 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:31:34,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-09-20 13:31:34,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-09-20 13:31:34,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-09-20 13:31:34,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 155 transitions. [2019-09-20 13:31:34,721 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 155 transitions. Word has length 64 [2019-09-20 13:31:34,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:34,723 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 155 transitions. [2019-09-20 13:31:34,724 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:34,724 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 155 transitions. [2019-09-20 13:31:34,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-20 13:31:34,729 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:34,735 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:34,735 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:34,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:34,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1080536843, now seen corresponding path program 1 times [2019-09-20 13:31:34,736 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:34,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:34,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:34,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:34,740 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:34,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:34,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:34,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:31:34,935 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:34,936 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:31:34,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:31:34,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:34,936 INFO L87 Difference]: Start difference. First operand 134 states and 155 transitions. Second operand 5 states. [2019-09-20 13:31:35,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:35,477 INFO L93 Difference]: Finished difference Result 245 states and 283 transitions. [2019-09-20 13:31:35,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:35,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2019-09-20 13:31:35,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:35,481 INFO L225 Difference]: With dead ends: 245 [2019-09-20 13:31:35,481 INFO L226 Difference]: Without dead ends: 245 [2019-09-20 13:31:35,482 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:35,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2019-09-20 13:31:35,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 227. [2019-09-20 13:31:35,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-09-20 13:31:35,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 259 transitions. [2019-09-20 13:31:35,511 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 259 transitions. Word has length 77 [2019-09-20 13:31:35,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:35,513 INFO L475 AbstractCegarLoop]: Abstraction has 227 states and 259 transitions. [2019-09-20 13:31:35,513 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:31:35,513 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 259 transitions. [2019-09-20 13:31:35,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-09-20 13:31:35,515 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:35,515 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:35,516 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:35,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:35,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1912690952, now seen corresponding path program 1 times [2019-09-20 13:31:35,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:35,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:35,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:35,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:35,524 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:35,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:35,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:35,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:35,679 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:35,679 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:35,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:35,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:35,680 INFO L87 Difference]: Start difference. First operand 227 states and 259 transitions. Second operand 7 states. [2019-09-20 13:31:36,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:36,449 INFO L93 Difference]: Finished difference Result 244 states and 283 transitions. [2019-09-20 13:31:36,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:31:36,450 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 91 [2019-09-20 13:31:36,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:36,453 INFO L225 Difference]: With dead ends: 244 [2019-09-20 13:31:36,453 INFO L226 Difference]: Without dead ends: 244 [2019-09-20 13:31:36,454 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:31:36,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2019-09-20 13:31:36,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 226. [2019-09-20 13:31:36,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-09-20 13:31:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 256 transitions. [2019-09-20 13:31:36,476 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 256 transitions. Word has length 91 [2019-09-20 13:31:36,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:36,477 INFO L475 AbstractCegarLoop]: Abstraction has 226 states and 256 transitions. [2019-09-20 13:31:36,477 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:36,478 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 256 transitions. [2019-09-20 13:31:36,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-20 13:31:36,480 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:36,481 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:36,481 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:36,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:36,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1624249196, now seen corresponding path program 1 times [2019-09-20 13:31:36,482 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:36,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:36,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:36,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:36,484 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:36,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:36,615 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:36,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:31:36,615 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:36,617 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:31:36,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:31:36,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:31:36,618 INFO L87 Difference]: Start difference. First operand 226 states and 256 transitions. Second operand 6 states. [2019-09-20 13:31:36,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:36,689 INFO L93 Difference]: Finished difference Result 233 states and 263 transitions. [2019-09-20 13:31:36,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:36,690 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 107 [2019-09-20 13:31:36,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:36,696 INFO L225 Difference]: With dead ends: 233 [2019-09-20 13:31:36,697 INFO L226 Difference]: Without dead ends: 233 [2019-09-20 13:31:36,697 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:36,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-09-20 13:31:36,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 231. [2019-09-20 13:31:36,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2019-09-20 13:31:36,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 261 transitions. [2019-09-20 13:31:36,714 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 261 transitions. Word has length 107 [2019-09-20 13:31:36,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:36,714 INFO L475 AbstractCegarLoop]: Abstraction has 231 states and 261 transitions. [2019-09-20 13:31:36,715 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:31:36,715 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 261 transitions. [2019-09-20 13:31:36,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-20 13:31:36,717 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:36,717 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:36,717 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:36,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:36,718 INFO L82 PathProgramCache]: Analyzing trace with hash 304023506, now seen corresponding path program 1 times [2019-09-20 13:31:36,718 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:36,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:36,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:36,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:36,720 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:36,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:36,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:36,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:36,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:31:36,824 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:36,825 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:31:36,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:31:36,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:36,826 INFO L87 Difference]: Start difference. First operand 231 states and 261 transitions. Second operand 8 states. [2019-09-20 13:31:36,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:36,859 INFO L93 Difference]: Finished difference Result 238 states and 268 transitions. [2019-09-20 13:31:36,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:36,859 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 107 [2019-09-20 13:31:36,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:36,864 INFO L225 Difference]: With dead ends: 238 [2019-09-20 13:31:36,864 INFO L226 Difference]: Without dead ends: 238 [2019-09-20 13:31:36,865 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:36,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2019-09-20 13:31:36,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 235. [2019-09-20 13:31:36,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2019-09-20 13:31:36,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 265 transitions. [2019-09-20 13:31:36,883 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 265 transitions. Word has length 107 [2019-09-20 13:31:36,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:36,883 INFO L475 AbstractCegarLoop]: Abstraction has 235 states and 265 transitions. [2019-09-20 13:31:36,884 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:31:36,884 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 265 transitions. [2019-09-20 13:31:36,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-20 13:31:36,886 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:36,886 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:36,887 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:36,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:36,887 INFO L82 PathProgramCache]: Analyzing trace with hash 63483377, now seen corresponding path program 1 times [2019-09-20 13:31:36,887 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:36,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:36,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:36,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:36,890 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:36,980 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:36,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:36,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:31:36,983 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:36,985 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:31:36,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:31:36,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:36,990 INFO L87 Difference]: Start difference. First operand 235 states and 265 transitions. Second operand 4 states. [2019-09-20 13:31:37,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:37,262 INFO L93 Difference]: Finished difference Result 460 states and 541 transitions. [2019-09-20 13:31:37,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:31:37,263 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 107 [2019-09-20 13:31:37,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:37,266 INFO L225 Difference]: With dead ends: 460 [2019-09-20 13:31:37,266 INFO L226 Difference]: Without dead ends: 460 [2019-09-20 13:31:37,267 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:37,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2019-09-20 13:31:37,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 451. [2019-09-20 13:31:37,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2019-09-20 13:31:37,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 524 transitions. [2019-09-20 13:31:37,291 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 524 transitions. Word has length 107 [2019-09-20 13:31:37,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:37,291 INFO L475 AbstractCegarLoop]: Abstraction has 451 states and 524 transitions. [2019-09-20 13:31:37,291 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:31:37,291 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 524 transitions. [2019-09-20 13:31:37,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-09-20 13:31:37,293 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:37,293 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:31:37,294 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:37,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:37,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1148604343, now seen corresponding path program 1 times [2019-09-20 13:31:37,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:37,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:37,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:37,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:37,297 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:37,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:37,469 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:37,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:31:37,469 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:37,470 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:31:37,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:31:37,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:31:37,471 INFO L87 Difference]: Start difference. First operand 451 states and 524 transitions. Second operand 9 states. [2019-09-20 13:31:38,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:38,694 INFO L93 Difference]: Finished difference Result 829 states and 966 transitions. [2019-09-20 13:31:38,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-20 13:31:38,696 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2019-09-20 13:31:38,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:38,703 INFO L225 Difference]: With dead ends: 829 [2019-09-20 13:31:38,703 INFO L226 Difference]: Without dead ends: 829 [2019-09-20 13:31:38,704 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:31:38,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2019-09-20 13:31:38,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 756. [2019-09-20 13:31:38,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2019-09-20 13:31:38,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 868 transitions. [2019-09-20 13:31:38,739 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 868 transitions. Word has length 111 [2019-09-20 13:31:38,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:38,739 INFO L475 AbstractCegarLoop]: Abstraction has 756 states and 868 transitions. [2019-09-20 13:31:38,740 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:31:38,740 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 868 transitions. [2019-09-20 13:31:38,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-09-20 13:31:38,743 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:38,743 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:38,743 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:38,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:38,744 INFO L82 PathProgramCache]: Analyzing trace with hash 490171745, now seen corresponding path program 1 times [2019-09-20 13:31:38,744 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:38,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:38,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:38,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:38,747 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-20 13:31:38,904 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:38,904 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:38,905 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 171 with the following transitions: [2019-09-20 13:31:38,908 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [108], [110], [116], [120], [123], [124], [125], [134], [138], [142], [145], [148], [150], [156], [158], [161], [185], [187], [192], [195], [196], [197], [198], [200], [205], [207], [208], [209], [210], [214], [217], [221], [227], [256], [260], [263], [267], [268], [271], [272], [273], [275], [276], [277], [279], [282], [284], [287], [290], [299], [301], [302], [305], [307], [310], [317], [320], [321], [322], [346], [348], [349], [367], [368], [418], [419], [429], [437], [438], [439], [440], [441], [442], [443], [444], [445], [477], [478], [481], [482], [483], [484], [485], [486], [489], [490], [493], [494], [495], [496], [497], [498], [499], [500], [501], [502], [503], [504], [505], [506], [511], [512], [513], [514], [515], [516], [517], [519], [520], [521], [522], [525], [526], [529], [530], [531], [533], [534], [539], [540], [541] [2019-09-20 13:31:38,954 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:38,954 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:39,042 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:39,043 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-20 13:31:39,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:39,047 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:39,101 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:39,102 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:39,107 INFO L420 sIntCurrentIteration]: We unified 169 AI predicates to 169 [2019-09-20 13:31:39,107 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:39,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:39,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-20 13:31:39,108 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:39,109 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:39,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:39,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:39,110 INFO L87 Difference]: Start difference. First operand 756 states and 868 transitions. Second operand 2 states. [2019-09-20 13:31:39,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:39,110 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:39,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:39,110 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 170 [2019-09-20 13:31:39,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:39,111 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:39,111 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:39,111 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 169 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 13:31:39,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:39,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:39,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:39,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:39,112 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 170 [2019-09-20 13:31:39,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:39,112 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:39,112 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:39,113 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:39,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:39,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:39 BoogieIcfgContainer [2019-09-20 13:31:39,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:39,121 INFO L168 Benchmark]: Toolchain (without parser) took 7773.21 ms. Allocated memory was 131.1 MB in the beginning and 341.3 MB in the end (delta: 210.2 MB). Free memory was 85.5 MB in the beginning and 234.2 MB in the end (delta: -148.7 MB). Peak memory consumption was 61.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:39,122 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:39,123 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.98 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 85.3 MB in the beginning and 159.0 MB in the end (delta: -73.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:39,124 INFO L168 Benchmark]: Boogie Preprocessor took 143.87 ms. Allocated memory is still 198.2 MB. Free memory was 159.0 MB in the beginning and 155.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:39,125 INFO L168 Benchmark]: RCFGBuilder took 1168.56 ms. Allocated memory was 198.2 MB in the beginning and 219.2 MB in the end (delta: 21.0 MB). Free memory was 155.2 MB in the beginning and 184.2 MB in the end (delta: -29.0 MB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:39,126 INFO L168 Benchmark]: TraceAbstraction took 5766.47 ms. Allocated memory was 219.2 MB in the beginning and 341.3 MB in the end (delta: 122.2 MB). Free memory was 184.2 MB in the beginning and 234.2 MB in the end (delta: -50.0 MB). Peak memory consumption was 72.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:39,136 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.98 ms. Allocated memory was 131.1 MB in the beginning and 198.2 MB in the end (delta: 67.1 MB). Free memory was 85.3 MB in the beginning and 159.0 MB in the end (delta: -73.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.87 ms. Allocated memory is still 198.2 MB. Free memory was 159.0 MB in the beginning and 155.2 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1168.56 ms. Allocated memory was 198.2 MB in the beginning and 219.2 MB in the end (delta: 21.0 MB). Free memory was 155.2 MB in the beginning and 184.2 MB in the end (delta: -29.0 MB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5766.47 ms. Allocated memory was 219.2 MB in the beginning and 341.3 MB in the end (delta: 122.2 MB). Free memory was 184.2 MB in the beginning and 234.2 MB in the end (delta: -50.0 MB). Peak memory consumption was 72.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: 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 41 procedures, 242 locations, 1 error locations. SAFE Result, 5.7s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1574 SDtfs, 1098 SDslu, 3182 SDs, 0 SdLazy, 1870 SolverSat, 403 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 271 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=756occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8106508875739645 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 123 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 953 NumberOfCodeBlocks, 953 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 943 ConstructedInterpolants, 0 QuantifiedInterpolants, 161031 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 70/77 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...