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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:41:31,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:41:31,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:41:32,005 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:41:32,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:41:32,007 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:41:32,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:41:32,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:41:32,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:41:32,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:41:32,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:41:32,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:41:32,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:41:32,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:41:32,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:41:32,033 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:41:32,034 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:41:32,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:41:32,038 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:41:32,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:41:32,047 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:41:32,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:41:32,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:41:32,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:41:32,055 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:41:32,055 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:41:32,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:41:32,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:41:32,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:41:32,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:41:32,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:41:32,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:41:32,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:41:32,061 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:41:32,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:41:32,062 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:41:32,063 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:41:32,063 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:41:32,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:41:32,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:41:32,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:41:32,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:41:32,084 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:41:32,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:41:32,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:41:32,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:41:32,086 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:41:32,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:41:32,087 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:41:32,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:41:32,087 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:41:32,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:41:32,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:41:32,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:41:32,088 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:41:32,089 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:41:32,089 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:41:32,089 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:41:32,089 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:41:32,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:41:32,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:41:32,090 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:41:32,090 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:41:32,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:41:32,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:41:32,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:41:32,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:41:32,091 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:41:32,091 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:41:32,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:41:32,091 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:41:32,422 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:41:32,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:41:32,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:41:32,452 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:41:32,452 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:41:32,453 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c [2019-10-13 19:41:32,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da032e19e/e6e42e2a19324e6cb0ba6a01bd506c87/FLAGc921b6f9a [2019-10-13 19:41:33,023 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:41:33,024 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c [2019-10-13 19:41:33,038 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da032e19e/e6e42e2a19324e6cb0ba6a01bd506c87/FLAGc921b6f9a [2019-10-13 19:41:33,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da032e19e/e6e42e2a19324e6cb0ba6a01bd506c87 [2019-10-13 19:41:33,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:41:33,393 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:41:33,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:41:33,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:41:33,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:41:33,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:41:33" (1/1) ... [2019-10-13 19:41:33,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d974c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:33, skipping insertion in model container [2019-10-13 19:41:33,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:41:33" (1/1) ... [2019-10-13 19:41:33,413 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:41:33,483 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:41:34,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:41:34,043 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:41:34,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:41:34,186 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:41:34,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:34 WrapperNode [2019-10-13 19:41:34,186 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:41:34,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:41:34,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:41:34,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:41:34,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:34" (1/1) ... [2019-10-13 19:41:34,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:34" (1/1) ... [2019-10-13 19:41:34,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:34" (1/1) ... [2019-10-13 19:41:34,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:34" (1/1) ... [2019-10-13 19:41:34,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:34" (1/1) ... [2019-10-13 19:41:34,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:34" (1/1) ... [2019-10-13 19:41:34,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:34" (1/1) ... [2019-10-13 19:41:34,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:41:34,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:41:34,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:41:34,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:41:34,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:41:34,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:41:34,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:41:34,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:41:34,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:41:34,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:41:34,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:41:34,344 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:41:34,345 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:41:34,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:41:34,345 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:41:34,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:41:34,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:41:34,345 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:41:34,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:41:34,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:41:34,346 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:41:34,346 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:41:34,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:41:34,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:41:34,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:41:34,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:41:34,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:41:34,348 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:41:34,352 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:41:34,352 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:41:34,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:41:34,353 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:41:34,353 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:41:34,353 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:41:34,353 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:41:34,353 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:41:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 19:41:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:41:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-13 19:41:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:41:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:41:34,354 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:41:34,355 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:41:34,355 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:41:34,355 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:41:34,357 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 19:41:34,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:41:34,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:41:34,357 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:41:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:41:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:41:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:41:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:41:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:41:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:41:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:41:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:41:34,358 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:41:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:41:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:41:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:41:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:41:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:41:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:41:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:41:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:41:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:41:34,359 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:41:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:41:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:41:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:41:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:41:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:41:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:41:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:41:34,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:41:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:41:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:41:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:41:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:41:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:41:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:41:34,361 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:41:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:41:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:41:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:41:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:41:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:41:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:41:34,362 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:41:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 19:41:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:41:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:41:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:41:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 19:41:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:41:34,363 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-13 19:41:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:41:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:41:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:41:34,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:41:35,567 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:41:35,567 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:41:35,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:41:35 BoogieIcfgContainer [2019-10-13 19:41:35,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:41:35,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:41:35,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:41:35,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:41:35,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:41:33" (1/3) ... [2019-10-13 19:41:35,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b74605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:41:35, skipping insertion in model container [2019-10-13 19:41:35,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:41:34" (2/3) ... [2019-10-13 19:41:35,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b74605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:41:35, skipping insertion in model container [2019-10-13 19:41:35,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:41:35" (3/3) ... [2019-10-13 19:41:35,579 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2019-10-13 19:41:35,589 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:41:35,598 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:41:35,611 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:41:35,639 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:41:35,639 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:41:35,639 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:41:35,639 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:41:35,639 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:41:35,640 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:41:35,640 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:41:35,640 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:41:35,665 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2019-10-13 19:41:35,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-13 19:41:35,675 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:35,676 INFO L380 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] [2019-10-13 19:41:35,678 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:35,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:35,685 INFO L82 PathProgramCache]: Analyzing trace with hash -318385319, now seen corresponding path program 1 times [2019-10-13 19:41:35,694 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:35,694 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954066167] [2019-10-13 19:41:35,695 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:35,695 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:35,695 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,425 WARN L191 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:36,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:36,545 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954066167] [2019-10-13 19:41:36,546 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:36,546 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 19:41:36,546 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126542938] [2019-10-13 19:41:36,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 19:41:36,552 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:36,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 19:41:36,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:41:36,570 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 4 states. [2019-10-13 19:41:37,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:37,735 INFO L93 Difference]: Finished difference Result 297 states and 378 transitions. [2019-10-13 19:41:37,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 19:41:37,739 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-13 19:41:37,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:37,753 INFO L225 Difference]: With dead ends: 297 [2019-10-13 19:41:37,754 INFO L226 Difference]: Without dead ends: 164 [2019-10-13 19:41:37,758 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 19:41:37,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-10-13 19:41:37,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 134. [2019-10-13 19:41:37,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-13 19:41:37,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 155 transitions. [2019-10-13 19:41:37,843 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 155 transitions. Word has length 59 [2019-10-13 19:41:37,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:37,844 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 155 transitions. [2019-10-13 19:41:37,844 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 19:41:37,844 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 155 transitions. [2019-10-13 19:41:37,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 19:41:37,848 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:37,848 INFO L380 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] [2019-10-13 19:41:37,848 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:37,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:37,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1634844471, now seen corresponding path program 1 times [2019-10-13 19:41:37,849 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:37,849 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517915419] [2019-10-13 19:41:37,849 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:37,850 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:37,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:38,208 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:38,329 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:38,329 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517915419] [2019-10-13 19:41:38,330 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:38,330 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 19:41:38,330 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366812148] [2019-10-13 19:41:38,344 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 19:41:38,345 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:38,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 19:41:38,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 19:41:38,345 INFO L87 Difference]: Start difference. First operand 134 states and 155 transitions. Second operand 5 states. [2019-10-13 19:41:38,895 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:39,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:39,683 INFO L93 Difference]: Finished difference Result 238 states and 286 transitions. [2019-10-13 19:41:39,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 19:41:39,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-13 19:41:39,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:39,687 INFO L225 Difference]: With dead ends: 238 [2019-10-13 19:41:39,687 INFO L226 Difference]: Without dead ends: 154 [2019-10-13 19:41:39,690 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:41:39,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-13 19:41:39,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 125. [2019-10-13 19:41:39,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-13 19:41:39,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 143 transitions. [2019-10-13 19:41:39,736 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 143 transitions. Word has length 60 [2019-10-13 19:41:39,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:39,737 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 143 transitions. [2019-10-13 19:41:39,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 19:41:39,737 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 143 transitions. [2019-10-13 19:41:39,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-13 19:41:39,739 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:39,739 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:41:39,740 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:39,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:39,740 INFO L82 PathProgramCache]: Analyzing trace with hash -1075077358, now seen corresponding path program 1 times [2019-10-13 19:41:39,740 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:39,741 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470705368] [2019-10-13 19:41:39,741 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:39,741 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:39,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:39,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,158 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:40,301 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:40,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470705368] [2019-10-13 19:41:40,301 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:40,302 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:41:40,302 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944751501] [2019-10-13 19:41:40,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:41:40,303 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:40,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:41:40,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:41:40,304 INFO L87 Difference]: Start difference. First operand 125 states and 143 transitions. Second operand 9 states. [2019-10-13 19:41:40,757 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:41,115 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:41,406 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:41,685 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:42,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:42,972 INFO L93 Difference]: Finished difference Result 251 states and 305 transitions. [2019-10-13 19:41:42,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 19:41:42,972 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-10-13 19:41:42,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:42,976 INFO L225 Difference]: With dead ends: 251 [2019-10-13 19:41:42,976 INFO L226 Difference]: Without dead ends: 154 [2019-10-13 19:41:42,977 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:41:42,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2019-10-13 19:41:43,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 125. [2019-10-13 19:41:43,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2019-10-13 19:41:43,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 142 transitions. [2019-10-13 19:41:43,012 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 142 transitions. Word has length 65 [2019-10-13 19:41:43,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:43,013 INFO L462 AbstractCegarLoop]: Abstraction has 125 states and 142 transitions. [2019-10-13 19:41:43,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:41:43,013 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 142 transitions. [2019-10-13 19:41:43,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-13 19:41:43,015 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:43,015 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:41:43,016 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:43,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:43,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1759456211, now seen corresponding path program 1 times [2019-10-13 19:41:43,016 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:43,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563702911] [2019-10-13 19:41:43,017 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:43,017 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:43,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,309 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:43,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:43,402 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563702911] [2019-10-13 19:41:43,402 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:43,403 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:41:43,403 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649719090] [2019-10-13 19:41:43,403 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:41:43,404 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:43,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:41:43,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:41:43,404 INFO L87 Difference]: Start difference. First operand 125 states and 142 transitions. Second operand 7 states. [2019-10-13 19:41:43,854 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:45,453 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:45,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:45,833 INFO L93 Difference]: Finished difference Result 346 states and 428 transitions. [2019-10-13 19:41:45,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 19:41:45,833 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-10-13 19:41:45,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:45,840 INFO L225 Difference]: With dead ends: 346 [2019-10-13 19:41:45,840 INFO L226 Difference]: Without dead ends: 249 [2019-10-13 19:41:45,844 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:41:45,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2019-10-13 19:41:45,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 203. [2019-10-13 19:41:45,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-10-13 19:41:45,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 233 transitions. [2019-10-13 19:41:45,903 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 233 transitions. Word has length 73 [2019-10-13 19:41:45,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:45,903 INFO L462 AbstractCegarLoop]: Abstraction has 203 states and 233 transitions. [2019-10-13 19:41:45,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:41:45,904 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 233 transitions. [2019-10-13 19:41:45,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 19:41:45,905 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:45,905 INFO L380 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] [2019-10-13 19:41:45,906 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:45,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:45,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1988493165, now seen corresponding path program 1 times [2019-10-13 19:41:45,906 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:45,907 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963551293] [2019-10-13 19:41:45,907 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:45,907 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:45,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:45,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,207 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:46,345 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 19:41:46,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963551293] [2019-10-13 19:41:46,346 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:46,346 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:41:46,346 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120918142] [2019-10-13 19:41:46,347 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:41:46,347 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:46,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:41:46,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:41:46,348 INFO L87 Difference]: Start difference. First operand 203 states and 233 transitions. Second operand 9 states. [2019-10-13 19:41:46,787 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:47,589 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:48,499 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:48,783 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:49,239 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:49,494 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:41:49,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:49,818 INFO L93 Difference]: Finished difference Result 423 states and 515 transitions. [2019-10-13 19:41:49,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 19:41:49,818 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2019-10-13 19:41:49,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:49,822 INFO L225 Difference]: With dead ends: 423 [2019-10-13 19:41:49,822 INFO L226 Difference]: Without dead ends: 248 [2019-10-13 19:41:49,823 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:41:49,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2019-10-13 19:41:49,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 202. [2019-10-13 19:41:49,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-10-13 19:41:49,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 230 transitions. [2019-10-13 19:41:49,865 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 230 transitions. Word has length 87 [2019-10-13 19:41:49,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:49,865 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 230 transitions. [2019-10-13 19:41:49,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:41:49,866 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 230 transitions. [2019-10-13 19:41:49,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 19:41:49,867 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:49,867 INFO L380 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] [2019-10-13 19:41:49,868 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:49,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:49,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1941251357, now seen corresponding path program 1 times [2019-10-13 19:41:49,868 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:49,869 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792026033] [2019-10-13 19:41:49,869 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:49,869 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:49,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:49,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,171 WARN L191 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:50,319 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:50,320 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792026033] [2019-10-13 19:41:50,320 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:50,320 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:41:50,321 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262250124] [2019-10-13 19:41:50,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:41:50,321 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:50,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:41:50,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:41:50,322 INFO L87 Difference]: Start difference. First operand 202 states and 230 transitions. Second operand 9 states. [2019-10-13 19:41:51,384 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:51,638 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-13 19:41:51,911 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:52,177 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:52,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:52,944 INFO L93 Difference]: Finished difference Result 423 states and 519 transitions. [2019-10-13 19:41:52,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 19:41:52,945 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2019-10-13 19:41:52,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:52,947 INFO L225 Difference]: With dead ends: 423 [2019-10-13 19:41:52,947 INFO L226 Difference]: Without dead ends: 249 [2019-10-13 19:41:52,948 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:41:52,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2019-10-13 19:41:52,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 207. [2019-10-13 19:41:52,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2019-10-13 19:41:52,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 235 transitions. [2019-10-13 19:41:52,982 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 235 transitions. Word has length 103 [2019-10-13 19:41:52,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:52,982 INFO L462 AbstractCegarLoop]: Abstraction has 207 states and 235 transitions. [2019-10-13 19:41:52,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 19:41:52,983 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 235 transitions. [2019-10-13 19:41:52,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 19:41:52,984 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:52,984 INFO L380 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] [2019-10-13 19:41:52,985 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:52,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:52,985 INFO L82 PathProgramCache]: Analyzing trace with hash -108136485, now seen corresponding path program 1 times [2019-10-13 19:41:52,985 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:52,986 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922653974] [2019-10-13 19:41:52,986 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:52,986 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:52,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,268 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:53,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:53,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:53,420 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922653974] [2019-10-13 19:41:53,420 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:53,421 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:41:53,421 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553068553] [2019-10-13 19:41:53,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:41:53,423 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:53,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:41:53,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:41:53,423 INFO L87 Difference]: Start difference. First operand 207 states and 235 transitions. Second operand 11 states. [2019-10-13 19:41:54,399 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:54,674 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:54,929 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:55,686 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:55,980 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:56,264 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:41:57,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:41:57,127 INFO L93 Difference]: Finished difference Result 433 states and 530 transitions. [2019-10-13 19:41:57,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-13 19:41:57,128 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2019-10-13 19:41:57,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:41:57,130 INFO L225 Difference]: With dead ends: 433 [2019-10-13 19:41:57,130 INFO L226 Difference]: Without dead ends: 254 [2019-10-13 19:41:57,134 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-13 19:41:57,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-10-13 19:41:57,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 211. [2019-10-13 19:41:57,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-10-13 19:41:57,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 239 transitions. [2019-10-13 19:41:57,177 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 239 transitions. Word has length 103 [2019-10-13 19:41:57,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:41:57,178 INFO L462 AbstractCegarLoop]: Abstraction has 211 states and 239 transitions. [2019-10-13 19:41:57,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:41:57,178 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 239 transitions. [2019-10-13 19:41:57,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 19:41:57,179 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:41:57,179 INFO L380 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] [2019-10-13 19:41:57,180 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:41:57,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:41:57,180 INFO L82 PathProgramCache]: Analyzing trace with hash 861444538, now seen corresponding path program 1 times [2019-10-13 19:41:57,180 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:41:57,181 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143807542] [2019-10-13 19:41:57,181 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:57,181 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:41:57,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:41:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,465 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:41:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:41:57,600 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:41:57,601 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143807542] [2019-10-13 19:41:57,606 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:41:57,606 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:41:57,607 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081794723] [2019-10-13 19:41:57,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:41:57,608 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:41:57,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:41:57,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:41:57,608 INFO L87 Difference]: Start difference. First operand 211 states and 239 transitions. Second operand 7 states. [2019-10-13 19:41:58,014 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:41:58,589 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:00,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:00,250 INFO L93 Difference]: Finished difference Result 605 states and 753 transitions. [2019-10-13 19:42:00,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 19:42:00,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2019-10-13 19:42:00,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:00,254 INFO L225 Difference]: With dead ends: 605 [2019-10-13 19:42:00,254 INFO L226 Difference]: Without dead ends: 422 [2019-10-13 19:42:00,255 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-10-13 19:42:00,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2019-10-13 19:42:00,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 380. [2019-10-13 19:42:00,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2019-10-13 19:42:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 442 transitions. [2019-10-13 19:42:00,325 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 442 transitions. Word has length 103 [2019-10-13 19:42:00,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:00,326 INFO L462 AbstractCegarLoop]: Abstraction has 380 states and 442 transitions. [2019-10-13 19:42:00,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:42:00,326 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 442 transitions. [2019-10-13 19:42:00,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-10-13 19:42:00,328 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:00,328 INFO L380 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] [2019-10-13 19:42:00,328 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:00,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:00,329 INFO L82 PathProgramCache]: Analyzing trace with hash 2005328992, now seen corresponding path program 1 times [2019-10-13 19:42:00,329 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:00,329 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687852363] [2019-10-13 19:42:00,329 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:00,329 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:00,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,760 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:00,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-13 19:42:00,953 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687852363] [2019-10-13 19:42:00,953 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:00,954 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 19:42:00,954 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120225310] [2019-10-13 19:42:00,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 19:42:00,955 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:00,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 19:42:00,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-13 19:42:00,955 INFO L87 Difference]: Start difference. First operand 380 states and 442 transitions. Second operand 12 states. [2019-10-13 19:42:01,605 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:02,290 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:03,307 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:03,636 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:03,927 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-13 19:42:04,224 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:04,538 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-13 19:42:05,576 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:05,861 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-13 19:42:06,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:06,637 INFO L93 Difference]: Finished difference Result 1052 states and 1296 transitions. [2019-10-13 19:42:06,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-13 19:42:06,638 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 107 [2019-10-13 19:42:06,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:06,643 INFO L225 Difference]: With dead ends: 1052 [2019-10-13 19:42:06,643 INFO L226 Difference]: Without dead ends: 769 [2019-10-13 19:42:06,645 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2019-10-13 19:42:06,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2019-10-13 19:42:06,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 650. [2019-10-13 19:42:06,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2019-10-13 19:42:06,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 748 transitions. [2019-10-13 19:42:06,789 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 748 transitions. Word has length 107 [2019-10-13 19:42:06,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:06,789 INFO L462 AbstractCegarLoop]: Abstraction has 650 states and 748 transitions. [2019-10-13 19:42:06,789 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 19:42:06,790 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 748 transitions. [2019-10-13 19:42:06,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2019-10-13 19:42:06,792 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:06,792 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:42:06,793 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:06,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:06,793 INFO L82 PathProgramCache]: Analyzing trace with hash 2092455891, now seen corresponding path program 1 times [2019-10-13 19:42:06,793 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:06,794 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361921166] [2019-10-13 19:42:06,794 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:06,794 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:06,794 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:06,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,109 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-13 19:42:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,374 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-13 19:42:07,374 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361921166] [2019-10-13 19:42:07,375 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496136589] [2019-10-13 19:42:07,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 19:42:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:07,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 19:42:07,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 19:42:07,815 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 26 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 19:42:07,816 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-13 19:42:07,816 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-10-13 19:42:07,816 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402133717] [2019-10-13 19:42:07,817 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-13 19:42:07,817 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:07,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-13 19:42:07,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-10-13 19:42:07,818 INFO L87 Difference]: Start difference. First operand 650 states and 748 transitions. Second operand 20 states. [2019-10-13 19:42:08,464 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-13 19:42:08,840 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 19:42:09,157 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 19:42:09,449 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-13 19:42:10,280 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-13 19:42:10,570 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2019-10-13 19:42:11,003 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 198