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_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:41:05,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:41:05,075 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:41:05,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:41:05,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:41:05,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:41:05,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:41:05,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:41:05,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:41:05,112 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:41:05,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:41:05,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:41:05,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:41:05,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:41:05,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:41:05,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:41:05,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:41:05,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:41:05,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:41:05,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:41:05,134 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:41:05,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:41:05,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:41:05,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:41:05,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:41:05,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:41:05,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:41:05,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:41:05,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:41:05,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:41:05,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:41:05,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:41:05,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:41:05,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:41:05,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:41:05,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:41:05,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:41:05,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:41:05,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:41:05,154 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:41:05,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:41:05,156 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 [2019-10-14 23:41:05,192 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:41:05,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:41:05,194 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:41:05,194 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:41:05,194 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:41:05,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:41:05,195 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:41:05,195 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:41:05,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:41:05,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:41:05,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:41:05,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:41:05,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:41:05,196 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:41:05,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:41:05,196 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:41:05,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:41:05,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:41:05,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:41:05,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:41:05,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:41:05,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:41:05,198 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:41:05,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:41:05,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:41:05,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:41:05,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:41:05,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:41:05,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:41:05,500 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:41:05,521 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:41:05,525 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:41:05,527 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:41:05,527 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:41:05,528 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2019-10-14 23:41:05,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb3d6928/922342b9c8884fa0b35213b65e282aa0/FLAGbf6058823 [2019-10-14 23:41:06,188 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:41:06,189 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2019-10-14 23:41:06,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb3d6928/922342b9c8884fa0b35213b65e282aa0/FLAGbf6058823 [2019-10-14 23:41:06,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bb3d6928/922342b9c8884fa0b35213b65e282aa0 [2019-10-14 23:41:06,508 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:41:06,509 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:41:06,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:41:06,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:41:06,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:41:06,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:41:06" (1/1) ... [2019-10-14 23:41:06,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a48b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:06, skipping insertion in model container [2019-10-14 23:41:06,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:41:06" (1/1) ... [2019-10-14 23:41:06,524 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:41:06,586 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:41:07,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:41:07,124 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:41:07,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:41:07,291 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:41:07,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:07 WrapperNode [2019-10-14 23:41:07,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:41:07,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:41:07,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:41:07,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:41:07,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:07" (1/1) ... [2019-10-14 23:41:07,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:07" (1/1) ... [2019-10-14 23:41:07,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:07" (1/1) ... [2019-10-14 23:41:07,326 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:07" (1/1) ... [2019-10-14 23:41:07,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:07" (1/1) ... [2019-10-14 23:41:07,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:07" (1/1) ... [2019-10-14 23:41:07,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:07" (1/1) ... [2019-10-14 23:41:07,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:41:07,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:41:07,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:41:07,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:41:07,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:07" (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 [2019-10-14 23:41:07,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:41:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:41:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:41:07,460 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:41:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:41:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:41:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:41:07,462 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:41:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:41:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:41:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:41:07,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:41:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:41:07,464 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:41:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-14 23:41:07,465 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-14 23:41:07,467 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:41:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:41:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:41:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:41:07,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:41:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:41:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:41:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:41:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-14 23:41:07,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:41:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:41:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:41:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:41:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:41:07,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:41:07,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:41:07,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:41:07,471 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:41:07,471 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:41:07,471 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:41:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:41:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:41:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:41:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:41:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:41:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:41:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:41:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:41:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:41:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:41:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:41:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:41:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:41:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:41:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:41:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-14 23:41:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:41:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:41:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:41:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:41:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:41:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-14 23:41:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-14 23:41:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-14 23:41:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:41:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:41:07,476 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:41:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-14 23:41:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-14 23:41:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:41:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:41:07,477 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:41:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:41:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:41:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:41:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:41:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:41:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:41:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:41:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:41:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:41:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:41:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:41:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:41:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:41:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:41:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:41:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:41:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:41:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:41:07,482 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:41:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:41:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-14 23:41:07,483 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:41:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:41:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:41:07,484 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:41:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:41:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:41:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:41:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:41:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:41:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:41:07,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:41:08,748 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:41:08,749 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:41:08,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:41:08 BoogieIcfgContainer [2019-10-14 23:41:08,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:41:08,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:41:08,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:41:08,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:41:08,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:41:06" (1/3) ... [2019-10-14 23:41:08,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e25ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:41:08, skipping insertion in model container [2019-10-14 23:41:08,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:41:07" (2/3) ... [2019-10-14 23:41:08,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e25ff6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:41:08, skipping insertion in model container [2019-10-14 23:41:08,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:41:08" (3/3) ... [2019-10-14 23:41:08,760 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2019-10-14 23:41:08,769 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:41:08,776 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:41:08,787 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:41:08,811 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:41:08,811 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:41:08,811 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:41:08,811 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:41:08,811 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:41:08,811 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:41:08,811 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:41:08,812 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:41:08,839 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states. [2019-10-14 23:41:08,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-14 23:41:08,848 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:08,849 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] [2019-10-14 23:41:08,851 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:08,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:08,856 INFO L82 PathProgramCache]: Analyzing trace with hash 2053229239, now seen corresponding path program 1 times [2019-10-14 23:41:08,865 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:08,866 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086762025] [2019-10-14 23:41:08,866 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:08,866 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:08,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:09,556 WARN L191 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:09,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:09,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:09,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:09,691 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086762025] [2019-10-14 23:41:09,692 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:09,693 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:41:09,693 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520373476] [2019-10-14 23:41:09,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:41:09,701 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:09,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:41:09,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:41:09,719 INFO L87 Difference]: Start difference. First operand 185 states. Second operand 4 states. [2019-10-14 23:41:10,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:10,936 INFO L93 Difference]: Finished difference Result 313 states and 401 transitions. [2019-10-14 23:41:10,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-14 23:41:10,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 59 [2019-10-14 23:41:10,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:10,966 INFO L225 Difference]: With dead ends: 313 [2019-10-14 23:41:10,966 INFO L226 Difference]: Without dead ends: 172 [2019-10-14 23:41:10,973 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 [2019-10-14 23:41:10,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-10-14 23:41:11,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 142. [2019-10-14 23:41:11,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-10-14 23:41:11,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 166 transitions. [2019-10-14 23:41:11,091 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 166 transitions. Word has length 59 [2019-10-14 23:41:11,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:11,092 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 166 transitions. [2019-10-14 23:41:11,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:41:11,092 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 166 transitions. [2019-10-14 23:41:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-14 23:41:11,104 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:11,106 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] [2019-10-14 23:41:11,106 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:11,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:11,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1701396789, now seen corresponding path program 1 times [2019-10-14 23:41:11,107 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:11,108 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884113746] [2019-10-14 23:41:11,108 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:11,108 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:11,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:11,524 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:11,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:11,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:11,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:11,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:11,589 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884113746] [2019-10-14 23:41:11,589 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:11,590 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:41:11,590 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171326528] [2019-10-14 23:41:11,592 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:41:11,592 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:11,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:41:11,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:41:11,593 INFO L87 Difference]: Start difference. First operand 142 states and 166 transitions. Second operand 5 states. [2019-10-14 23:41:12,095 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:13,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:13,011 INFO L93 Difference]: Finished difference Result 254 states and 309 transitions. [2019-10-14 23:41:13,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 23:41:13,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-14 23:41:13,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:13,015 INFO L225 Difference]: With dead ends: 254 [2019-10-14 23:41:13,015 INFO L226 Difference]: Without dead ends: 162 [2019-10-14 23:41:13,017 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 [2019-10-14 23:41:13,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-10-14 23:41:13,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 133. [2019-10-14 23:41:13,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-10-14 23:41:13,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 154 transitions. [2019-10-14 23:41:13,055 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 154 transitions. Word has length 60 [2019-10-14 23:41:13,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:13,056 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 154 transitions. [2019-10-14 23:41:13,056 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:41:13,056 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 154 transitions. [2019-10-14 23:41:13,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-14 23:41:13,057 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:13,058 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] [2019-10-14 23:41:13,058 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:13,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:13,058 INFO L82 PathProgramCache]: Analyzing trace with hash -835538636, now seen corresponding path program 1 times [2019-10-14 23:41:13,059 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:13,059 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667725305] [2019-10-14 23:41:13,059 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:13,059 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:13,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:13,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:13,424 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:13,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:13,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:13,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:13,538 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:13,538 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667725305] [2019-10-14 23:41:13,539 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:13,539 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:41:13,539 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356685290] [2019-10-14 23:41:13,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:41:13,540 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:13,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:41:13,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:41:13,541 INFO L87 Difference]: Start difference. First operand 133 states and 154 transitions. Second operand 9 states. [2019-10-14 23:41:14,005 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:14,402 WARN L191 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:14,697 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:14,950 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:16,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:16,378 INFO L93 Difference]: Finished difference Result 267 states and 328 transitions. [2019-10-14 23:41:16,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:41:16,381 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 65 [2019-10-14 23:41:16,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:16,384 INFO L225 Difference]: With dead ends: 267 [2019-10-14 23:41:16,384 INFO L226 Difference]: Without dead ends: 162 [2019-10-14 23:41:16,386 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:41:16,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2019-10-14 23:41:16,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 133. [2019-10-14 23:41:16,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-10-14 23:41:16,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2019-10-14 23:41:16,421 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 65 [2019-10-14 23:41:16,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:16,422 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2019-10-14 23:41:16,422 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:41:16,422 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2019-10-14 23:41:16,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-14 23:41:16,423 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:16,424 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] [2019-10-14 23:41:16,424 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:16,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:16,424 INFO L82 PathProgramCache]: Analyzing trace with hash -192684169, now seen corresponding path program 1 times [2019-10-14 23:41:16,425 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:16,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760725110] [2019-10-14 23:41:16,425 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:16,425 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:16,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,812 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:16,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:16,914 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760725110] [2019-10-14 23:41:16,915 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:16,915 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:41:16,915 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928694402] [2019-10-14 23:41:16,916 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:41:16,916 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:16,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:41:16,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:41:16,917 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand 7 states. [2019-10-14 23:41:17,347 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:18,930 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:19,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:19,577 INFO L93 Difference]: Finished difference Result 371 states and 462 transitions. [2019-10-14 23:41:19,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:41:19,578 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-14 23:41:19,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:19,582 INFO L225 Difference]: With dead ends: 371 [2019-10-14 23:41:19,583 INFO L226 Difference]: Without dead ends: 266 [2019-10-14 23:41:19,584 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2019-10-14 23:41:19,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-10-14 23:41:19,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 220. [2019-10-14 23:41:19,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2019-10-14 23:41:19,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 252 transitions. [2019-10-14 23:41:19,633 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 252 transitions. Word has length 78 [2019-10-14 23:41:19,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:19,633 INFO L462 AbstractCegarLoop]: Abstraction has 220 states and 252 transitions. [2019-10-14 23:41:19,633 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:41:19,634 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 252 transitions. [2019-10-14 23:41:19,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-14 23:41:19,635 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:19,635 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] [2019-10-14 23:41:19,635 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:19,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:19,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1827957124, now seen corresponding path program 1 times [2019-10-14 23:41:19,636 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:19,636 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019720506] [2019-10-14 23:41:19,637 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:19,637 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:19,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:19,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,936 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:19,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:20,082 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019720506] [2019-10-14 23:41:20,083 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:20,083 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:41:20,083 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351094503] [2019-10-14 23:41:20,084 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:41:20,084 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:20,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:41:20,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:41:20,085 INFO L87 Difference]: Start difference. First operand 220 states and 252 transitions. Second operand 11 states. [2019-10-14 23:41:20,829 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:21,107 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:21,380 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:22,229 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:22,525 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:22,810 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:23,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:23,889 INFO L93 Difference]: Finished difference Result 459 states and 566 transitions. [2019-10-14 23:41:23,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:41:23,890 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2019-10-14 23:41:23,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:23,893 INFO L225 Difference]: With dead ends: 459 [2019-10-14 23:41:23,894 INFO L226 Difference]: Without dead ends: 267 [2019-10-14 23:41:23,895 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:41:23,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2019-10-14 23:41:23,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 224. [2019-10-14 23:41:23,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-10-14 23:41:23,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 256 transitions. [2019-10-14 23:41:23,942 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 256 transitions. Word has length 92 [2019-10-14 23:41:23,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:23,942 INFO L462 AbstractCegarLoop]: Abstraction has 224 states and 256 transitions. [2019-10-14 23:41:23,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:41:23,943 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 256 transitions. [2019-10-14 23:41:23,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-14 23:41:23,944 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:23,944 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] [2019-10-14 23:41:23,944 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:23,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:23,945 INFO L82 PathProgramCache]: Analyzing trace with hash -1850589378, now seen corresponding path program 1 times [2019-10-14 23:41:23,945 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:23,945 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737006179] [2019-10-14 23:41:23,945 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:23,946 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:23,946 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,261 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:24,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-14 23:41:24,429 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737006179] [2019-10-14 23:41:24,430 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:24,431 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:41:24,431 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511795879] [2019-10-14 23:41:24,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:41:24,432 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:24,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:41:24,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:41:24,432 INFO L87 Difference]: Start difference. First operand 224 states and 256 transitions. Second operand 9 states. [2019-10-14 23:41:24,957 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:25,678 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:26,397 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:26,767 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:27,285 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:27,562 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:28,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:28,185 INFO L93 Difference]: Finished difference Result 465 states and 564 transitions. [2019-10-14 23:41:28,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:41:28,186 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 92 [2019-10-14 23:41:28,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:28,189 INFO L225 Difference]: With dead ends: 465 [2019-10-14 23:41:28,189 INFO L226 Difference]: Without dead ends: 269 [2019-10-14 23:41:28,190 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2019-10-14 23:41:28,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-10-14 23:41:28,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 223. [2019-10-14 23:41:28,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2019-10-14 23:41:28,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 253 transitions. [2019-10-14 23:41:28,226 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 253 transitions. Word has length 92 [2019-10-14 23:41:28,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:28,226 INFO L462 AbstractCegarLoop]: Abstraction has 223 states and 253 transitions. [2019-10-14 23:41:28,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:41:28,227 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 253 transitions. [2019-10-14 23:41:28,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-14 23:41:28,227 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:28,228 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] [2019-10-14 23:41:28,228 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:28,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:28,228 INFO L82 PathProgramCache]: Analyzing trace with hash -185232827, now seen corresponding path program 1 times [2019-10-14 23:41:28,229 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:28,229 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663246415] [2019-10-14 23:41:28,229 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:28,229 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:28,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,537 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:28,697 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:28,698 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663246415] [2019-10-14 23:41:28,698 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:28,698 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:41:28,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001203027] [2019-10-14 23:41:28,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:41:28,699 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:28,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:41:28,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:41:28,700 INFO L87 Difference]: Start difference. First operand 223 states and 253 transitions. Second operand 9 states. [2019-10-14 23:41:29,781 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:30,080 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-14 23:41:30,369 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:30,645 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:31,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:31,540 INFO L93 Difference]: Finished difference Result 463 states and 558 transitions. [2019-10-14 23:41:31,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:41:31,540 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2019-10-14 23:41:31,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:31,543 INFO L225 Difference]: With dead ends: 463 [2019-10-14 23:41:31,543 INFO L226 Difference]: Without dead ends: 268 [2019-10-14 23:41:31,544 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:41:31,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2019-10-14 23:41:31,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2019-10-14 23:41:31,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2019-10-14 23:41:31,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 258 transitions. [2019-10-14 23:41:31,586 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 258 transitions. Word has length 93 [2019-10-14 23:41:31,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:31,586 INFO L462 AbstractCegarLoop]: Abstraction has 228 states and 258 transitions. [2019-10-14 23:41:31,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:41:31,586 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 258 transitions. [2019-10-14 23:41:31,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-14 23:41:31,587 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:31,588 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] [2019-10-14 23:41:31,588 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:31,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:31,588 INFO L82 PathProgramCache]: Analyzing trace with hash -2053119352, now seen corresponding path program 1 times [2019-10-14 23:41:31,589 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:31,589 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732931053] [2019-10-14 23:41:31,589 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:31,589 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:31,589 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,877 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:32,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:32,005 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732931053] [2019-10-14 23:41:32,005 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:32,005 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-14 23:41:32,006 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327329840] [2019-10-14 23:41:32,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:41:32,006 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:32,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:41:32,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:41:32,007 INFO L87 Difference]: Start difference. First operand 228 states and 258 transitions. Second operand 7 states. [2019-10-14 23:41:32,471 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:33,076 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:35,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:35,029 INFO L93 Difference]: Finished difference Result 649 states and 808 transitions. [2019-10-14 23:41:35,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:41:35,029 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 93 [2019-10-14 23:41:35,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:35,033 INFO L225 Difference]: With dead ends: 649 [2019-10-14 23:41:35,034 INFO L226 Difference]: Without dead ends: 449 [2019-10-14 23:41:35,035 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 37 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-10-14 23:41:35,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2019-10-14 23:41:35,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 407. [2019-10-14 23:41:35,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-10-14 23:41:35,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 474 transitions. [2019-10-14 23:41:35,110 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 474 transitions. Word has length 93 [2019-10-14 23:41:35,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:35,111 INFO L462 AbstractCegarLoop]: Abstraction has 407 states and 474 transitions. [2019-10-14 23:41:35,111 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:41:35,111 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 474 transitions. [2019-10-14 23:41:35,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-14 23:41:35,113 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:35,113 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] [2019-10-14 23:41:35,113 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:35,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:35,113 INFO L82 PathProgramCache]: Analyzing trace with hash 868259694, now seen corresponding path program 1 times [2019-10-14 23:41:35,114 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:35,114 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981769314] [2019-10-14 23:41:35,114 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:35,114 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:35,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,455 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:35,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:35,657 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-14 23:41:35,658 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981769314] [2019-10-14 23:41:35,658 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:41:35,658 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:41:35,659 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637857478] [2019-10-14 23:41:35,659 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:41:35,661 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:35,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:41:35,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:41:35,662 INFO L87 Difference]: Start difference. First operand 407 states and 474 transitions. Second operand 12 states. [2019-10-14 23:41:36,213 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:36,905 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:38,018 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:38,344 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:38,599 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-10-14 23:41:38,879 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:39,184 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2019-10-14 23:41:40,388 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:41:40,670 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:41:41,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:41:41,363 INFO L93 Difference]: Finished difference Result 1129 states and 1399 transitions. [2019-10-14 23:41:41,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-10-14 23:41:41,363 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 97 [2019-10-14 23:41:41,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:41:41,369 INFO L225 Difference]: With dead ends: 1129 [2019-10-14 23:41:41,369 INFO L226 Difference]: Without dead ends: 824 [2019-10-14 23:41:41,372 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2019-10-14 23:41:41,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2019-10-14 23:41:41,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 702. [2019-10-14 23:41:41,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 702 states. [2019-10-14 23:41:41,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 810 transitions. [2019-10-14 23:41:41,491 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 810 transitions. Word has length 97 [2019-10-14 23:41:41,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:41:41,492 INFO L462 AbstractCegarLoop]: Abstraction has 702 states and 810 transitions. [2019-10-14 23:41:41,492 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:41:41,492 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 810 transitions. [2019-10-14 23:41:41,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-14 23:41:41,494 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:41:41,495 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, 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] [2019-10-14 23:41:41,495 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:41:41,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:41:41,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1063606964, now seen corresponding path program 1 times [2019-10-14 23:41:41,496 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:41:41,496 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267836858] [2019-10-14 23:41:41,496 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:41,496 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:41:41,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:41:41,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,843 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:41:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:42,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:42,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:42,101 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 22 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-14 23:41:42,101 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267836858] [2019-10-14 23:41:42,101 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625917932] [2019-10-14 23:41:42,102 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 [2019-10-14 23:41:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:41:42,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-14 23:41:42,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:41:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 28 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:41:42,593 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:41:42,594 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7] total 20 [2019-10-14 23:41:42,594 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962806087] [2019-10-14 23:41:42,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-14 23:41:42,596 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:41:42,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-14 23:41:42,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:41:42,597 INFO L87 Difference]: Start difference. First operand 702 states and 810 transitions. Second operand 20 states. [2019-10-14 23:41:43,670 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-10-14 23:41:44,045 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-14 23:41:44,340 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-10-14 23:41:44,636 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 196