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_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 19:42:47,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 19:42:47,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 19:42:47,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 19:42:47,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 19:42:47,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 19:42:47,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 19:42:47,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 19:42:47,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 19:42:47,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 19:42:47,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 19:42:47,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 19:42:47,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 19:42:47,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 19:42:47,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 19:42:47,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 19:42:47,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 19:42:47,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 19:42:47,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 19:42:47,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 19:42:47,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 19:42:47,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 19:42:47,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 19:42:47,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 19:42:47,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 19:42:47,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 19:42:47,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 19:42:47,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 19:42:47,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 19:42:47,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 19:42:47,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 19:42:47,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 19:42:47,267 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 19:42:47,268 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 19:42:47,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 19:42:47,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 19:42:47,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 19:42:47,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 19:42:47,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 19:42:47,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 19:42:47,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 19:42:47,277 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 19:42:47,294 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 19:42:47,295 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 19:42:47,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 19:42:47,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 19:42:47,297 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 19:42:47,297 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 19:42:47,298 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 19:42:47,298 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 19:42:47,298 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 19:42:47,298 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 19:42:47,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 19:42:47,299 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 19:42:47,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 19:42:47,300 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 19:42:47,300 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 19:42:47,300 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 19:42:47,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 19:42:47,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 19:42:47,301 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 19:42:47,301 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 19:42:47,301 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 19:42:47,302 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:42:47,302 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 19:42:47,302 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 19:42:47,302 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 19:42:47,302 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 19:42:47,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 19:42:47,303 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 19:42:47,303 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 19:42:47,561 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 19:42:47,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 19:42:47,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 19:42:47,582 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 19:42:47,583 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 19:42:47,583 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_productSimulator.cil.c [2019-10-13 19:42:47,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de5e1502e/e22ae3ebc3b64ceab2ef5c549482b173/FLAG1763b1f35 [2019-10-13 19:42:48,195 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 19:42:48,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_productSimulator.cil.c [2019-10-13 19:42:48,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de5e1502e/e22ae3ebc3b64ceab2ef5c549482b173/FLAG1763b1f35 [2019-10-13 19:42:48,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de5e1502e/e22ae3ebc3b64ceab2ef5c549482b173 [2019-10-13 19:42:48,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 19:42:48,499 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 19:42:48,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 19:42:48,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 19:42:48,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 19:42:48,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:42:48" (1/1) ... [2019-10-13 19:42:48,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7384ae86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:48, skipping insertion in model container [2019-10-13 19:42:48,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:42:48" (1/1) ... [2019-10-13 19:42:48,513 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 19:42:48,565 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 19:42:48,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:42:48,988 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 19:42:49,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 19:42:49,170 INFO L192 MainTranslator]: Completed translation [2019-10-13 19:42:49,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:49 WrapperNode [2019-10-13 19:42:49,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 19:42:49,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 19:42:49,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 19:42:49,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 19:42:49,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:49" (1/1) ... [2019-10-13 19:42:49,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:49" (1/1) ... [2019-10-13 19:42:49,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:49" (1/1) ... [2019-10-13 19:42:49,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:49" (1/1) ... [2019-10-13 19:42:49,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:49" (1/1) ... [2019-10-13 19:42:49,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:49" (1/1) ... [2019-10-13 19:42:49,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:49" (1/1) ... [2019-10-13 19:42:49,290 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 19:42:49,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 19:42:49,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 19:42:49,291 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 19:42:49,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 19:42:49,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 19:42:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 19:42:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 19:42:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 19:42:49,368 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 19:42:49,369 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 19:42:49,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 19:42:49,370 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 19:42:49,370 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 19:42:49,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 19:42:49,371 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 19:42:49,371 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 19:42:49,372 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 19:42:49,372 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 19:42:49,373 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 19:42:49,373 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 19:42:49,375 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 19:42:49,375 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 19:42:49,375 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 19:42:49,376 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 19:42:49,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 19:42:49,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 19:42:49,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 19:42:49,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 19:42:49,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 19:42:49,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 19:42:49,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 19:42:49,377 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 19:42:49,377 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 19:42:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__highWaterSensor [2019-10-13 19:42:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__highWaterSensor [2019-10-13 19:42:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__lowWaterSensor [2019-10-13 19:42:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__lowWaterSensor [2019-10-13 19:42:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__before__methaneAlarm [2019-10-13 19:42:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__role__methaneAlarm [2019-10-13 19:42:49,378 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 19:42:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__before__methaneQuery [2019-10-13 19:42:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__role__methaneQuery [2019-10-13 19:42:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 19:42:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 19:42:49,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 19:42:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 19:42:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 19:42:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 19:42:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 19:42:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 19:42:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 19:42:49,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:42:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:42:49,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:42:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 19:42:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 19:42:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 19:42:49,381 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 19:42:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 19:42:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 19:42:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 19:42:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 19:42:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 19:42:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 19:42:49,382 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 19:42:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 19:42:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 19:42:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 19:42:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 19:42:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 19:42:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 19:42:49,383 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 19:42:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 19:42:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 19:42:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 19:42:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 19:42:49,384 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 19:42:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 19:42:49,385 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 19:42:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 19:42:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 19:42:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 19:42:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 19:42:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 19:42:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 19:42:49,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 19:42:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 19:42:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 19:42:49,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 19:42:49,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 19:42:49,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 19:42:49,389 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 19:42:49,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 19:42:49,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 19:42:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 19:42:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 19:42:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 19:42:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 19:42:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 19:42:49,390 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 19:42:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 19:42:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 19:42:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 19:42:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 19:42:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__highWaterSensor [2019-10-13 19:42:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 19:42:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__highWaterSensor [2019-10-13 19:42:49,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__lowWaterSensor [2019-10-13 19:42:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 19:42:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__lowWaterSensor [2019-10-13 19:42:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__before__methaneAlarm [2019-10-13 19:42:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 19:42:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__role__methaneAlarm [2019-10-13 19:42:49,392 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__before__methaneQuery [2019-10-13 19:42:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__role__methaneQuery [2019-10-13 19:42:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 19:42:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 19:42:49,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 19:42:50,518 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 19:42:50,519 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 19:42:50,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:42:50 BoogieIcfgContainer [2019-10-13 19:42:50,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 19:42:50,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 19:42:50,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 19:42:50,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 19:42:50,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:42:48" (1/3) ... [2019-10-13 19:42:50,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e40aa6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:42:50, skipping insertion in model container [2019-10-13 19:42:50,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:42:49" (2/3) ... [2019-10-13 19:42:50,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e40aa6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:42:50, skipping insertion in model container [2019-10-13 19:42:50,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:42:50" (3/3) ... [2019-10-13 19:42:50,534 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_productSimulator.cil.c [2019-10-13 19:42:50,544 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 19:42:50,553 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 19:42:50,564 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 19:42:50,604 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 19:42:50,604 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 19:42:50,604 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 19:42:50,605 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 19:42:50,605 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 19:42:50,605 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 19:42:50,605 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 19:42:50,606 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 19:42:50,638 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2019-10-13 19:42:50,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-13 19:42:50,653 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:50,654 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-10-13 19:42:50,656 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:50,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:50,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1762673243, now seen corresponding path program 1 times [2019-10-13 19:42:50,670 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:50,670 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891688376] [2019-10-13 19:42:50,671 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:50,671 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:50,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,491 WARN L191 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-13 19:42:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:51,688 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 19:42:51,690 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891688376] [2019-10-13 19:42:51,690 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:51,691 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 19:42:51,691 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647669716] [2019-10-13 19:42:51,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 19:42:51,698 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:51,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 19:42:51,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-13 19:42:51,714 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2019-10-13 19:42:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:54,026 INFO L93 Difference]: Finished difference Result 455 states and 593 transitions. [2019-10-13 19:42:54,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 19:42:54,028 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2019-10-13 19:42:54,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:54,045 INFO L225 Difference]: With dead ends: 455 [2019-10-13 19:42:54,045 INFO L226 Difference]: Without dead ends: 261 [2019-10-13 19:42:54,050 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-10-13 19:42:54,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2019-10-13 19:42:54,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 212. [2019-10-13 19:42:54,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-10-13 19:42:54,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 259 transitions. [2019-10-13 19:42:54,158 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 259 transitions. Word has length 91 [2019-10-13 19:42:54,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:54,159 INFO L462 AbstractCegarLoop]: Abstraction has 212 states and 259 transitions. [2019-10-13 19:42:54,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 19:42:54,160 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 259 transitions. [2019-10-13 19:42:54,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-13 19:42:54,174 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:54,175 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-10-13 19:42:54,175 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:54,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:54,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1489086657, now seen corresponding path program 1 times [2019-10-13 19:42:54,176 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:54,176 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304042462] [2019-10-13 19:42:54,176 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:54,176 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:54,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:54,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,669 WARN L191 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-13 19:42:54,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:54,781 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 19:42:54,781 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304042462] [2019-10-13 19:42:54,782 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:54,782 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 19:42:54,782 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756840422] [2019-10-13 19:42:54,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 19:42:54,784 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:54,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 19:42:54,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-13 19:42:54,785 INFO L87 Difference]: Start difference. First operand 212 states and 259 transitions. Second operand 7 states. [2019-10-13 19:42:55,479 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-10-13 19:42:57,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:42:57,290 INFO L93 Difference]: Finished difference Result 388 states and 489 transitions. [2019-10-13 19:42:57,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 19:42:57,294 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 92 [2019-10-13 19:42:57,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:42:57,297 INFO L225 Difference]: With dead ends: 388 [2019-10-13 19:42:57,297 INFO L226 Difference]: Without dead ends: 251 [2019-10-13 19:42:57,299 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:42:57,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-10-13 19:42:57,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 203. [2019-10-13 19:42:57,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-10-13 19:42:57,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 247 transitions. [2019-10-13 19:42:57,343 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 247 transitions. Word has length 92 [2019-10-13 19:42:57,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:42:57,344 INFO L462 AbstractCegarLoop]: Abstraction has 203 states and 247 transitions. [2019-10-13 19:42:57,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 19:42:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 247 transitions. [2019-10-13 19:42:57,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-10-13 19:42:57,346 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:42:57,347 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 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] [2019-10-13 19:42:57,347 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:42:57,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:42:57,347 INFO L82 PathProgramCache]: Analyzing trace with hash -2081754782, now seen corresponding path program 1 times [2019-10-13 19:42:57,348 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:42:57,348 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442544624] [2019-10-13 19:42:57,348 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:57,348 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:42:57,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:42:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,777 WARN L191 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-13 19:42:57,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:42:57,982 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 19:42:57,982 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442544624] [2019-10-13 19:42:57,982 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:42:57,983 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-13 19:42:57,983 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411720259] [2019-10-13 19:42:57,983 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-13 19:42:57,984 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:42:57,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-13 19:42:57,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-10-13 19:42:57,984 INFO L87 Difference]: Start difference. First operand 203 states and 247 transitions. Second operand 13 states. [2019-10-13 19:42:58,578 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-13 19:42:59,307 WARN L191 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 214 [2019-10-13 19:43:00,181 WARN L191 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 216 [2019-10-13 19:43:01,281 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-13 19:43:02,113 WARN L191 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2019-10-13 19:43:05,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:05,905 INFO L93 Difference]: Finished difference Result 654 states and 830 transitions. [2019-10-13 19:43:05,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-13 19:43:05,907 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 97 [2019-10-13 19:43:05,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:05,913 INFO L225 Difference]: With dead ends: 654 [2019-10-13 19:43:05,913 INFO L226 Difference]: Without dead ends: 496 [2019-10-13 19:43:05,915 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=200, Invalid=612, Unknown=0, NotChecked=0, Total=812 [2019-10-13 19:43:05,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-10-13 19:43:06,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 407. [2019-10-13 19:43:06,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-10-13 19:43:06,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 508 transitions. [2019-10-13 19:43:06,012 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 508 transitions. Word has length 97 [2019-10-13 19:43:06,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:06,013 INFO L462 AbstractCegarLoop]: Abstraction has 407 states and 508 transitions. [2019-10-13 19:43:06,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-13 19:43:06,013 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 508 transitions. [2019-10-13 19:43:06,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-13 19:43:06,015 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:06,015 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:43:06,016 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:06,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:06,016 INFO L82 PathProgramCache]: Analyzing trace with hash -995246095, now seen corresponding path program 1 times [2019-10-13 19:43:06,016 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:06,016 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164593358] [2019-10-13 19:43:06,017 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:06,017 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:06,017 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,393 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-13 19:43:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-13 19:43:06,566 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164593358] [2019-10-13 19:43:06,566 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:43:06,567 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:43:06,567 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137518984] [2019-10-13 19:43:06,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:43:06,568 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:06,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:43:06,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:43:06,569 INFO L87 Difference]: Start difference. First operand 407 states and 508 transitions. Second operand 11 states. [2019-10-13 19:43:07,180 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-13 19:43:08,330 WARN L191 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-13 19:43:09,640 WARN L191 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-13 19:43:09,948 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-13 19:43:10,545 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-13 19:43:10,901 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-10-13 19:43:12,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:12,497 INFO L93 Difference]: Finished difference Result 1064 states and 1438 transitions. [2019-10-13 19:43:12,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-13 19:43:12,498 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 103 [2019-10-13 19:43:12,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:12,505 INFO L225 Difference]: With dead ends: 1064 [2019-10-13 19:43:12,505 INFO L226 Difference]: Without dead ends: 702 [2019-10-13 19:43:12,508 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=220, Invalid=536, Unknown=0, NotChecked=0, Total=756 [2019-10-13 19:43:12,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2019-10-13 19:43:12,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 628. [2019-10-13 19:43:12,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2019-10-13 19:43:12,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 795 transitions. [2019-10-13 19:43:12,631 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 795 transitions. Word has length 103 [2019-10-13 19:43:12,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:12,631 INFO L462 AbstractCegarLoop]: Abstraction has 628 states and 795 transitions. [2019-10-13 19:43:12,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:43:12,632 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 795 transitions. [2019-10-13 19:43:12,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-13 19:43:12,634 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:12,635 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:43:12,635 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:12,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:12,635 INFO L82 PathProgramCache]: Analyzing trace with hash -2077668553, now seen corresponding path program 1 times [2019-10-13 19:43:12,636 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:12,636 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700305582] [2019-10-13 19:43:12,636 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:12,636 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:12,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:12,968 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-13 19:43:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:13,221 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 19:43:13,222 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700305582] [2019-10-13 19:43:13,222 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:43:13,222 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-13 19:43:13,222 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123875421] [2019-10-13 19:43:13,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-13 19:43:13,224 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:13,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-13 19:43:13,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-10-13 19:43:13,224 INFO L87 Difference]: Start difference. First operand 628 states and 795 transitions. Second operand 14 states. [2019-10-13 19:43:13,988 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-13 19:43:14,559 WARN L191 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-13 19:43:15,937 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-13 19:43:16,335 WARN L191 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-13 19:43:16,690 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 215 [2019-10-13 19:43:18,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:18,586 INFO L93 Difference]: Finished difference Result 1314 states and 1796 transitions. [2019-10-13 19:43:18,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 19:43:18,588 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2019-10-13 19:43:18,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:18,596 INFO L225 Difference]: With dead ends: 1314 [2019-10-13 19:43:18,596 INFO L226 Difference]: Without dead ends: 731 [2019-10-13 19:43:18,599 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2019-10-13 19:43:18,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2019-10-13 19:43:18,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 639. [2019-10-13 19:43:18,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 639 states. [2019-10-13 19:43:18,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 639 states to 639 states and 807 transitions. [2019-10-13 19:43:18,742 INFO L78 Accepts]: Start accepts. Automaton has 639 states and 807 transitions. Word has length 136 [2019-10-13 19:43:18,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:18,742 INFO L462 AbstractCegarLoop]: Abstraction has 639 states and 807 transitions. [2019-10-13 19:43:18,743 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-13 19:43:18,743 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 807 transitions. [2019-10-13 19:43:18,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-13 19:43:18,747 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:18,747 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:43:18,748 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:18,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:18,748 INFO L82 PathProgramCache]: Analyzing trace with hash -232301387, now seen corresponding path program 1 times [2019-10-13 19:43:18,748 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:18,748 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91323400] [2019-10-13 19:43:18,748 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:18,749 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:18,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,160 WARN L191 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-13 19:43:19,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 19:43:19,346 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91323400] [2019-10-13 19:43:19,347 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:43:19,347 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 19:43:19,347 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919620974] [2019-10-13 19:43:19,348 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 19:43:19,348 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:19,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 19:43:19,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2019-10-13 19:43:19,349 INFO L87 Difference]: Start difference. First operand 639 states and 807 transitions. Second operand 11 states. [2019-10-13 19:43:21,136 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-10-13 19:43:21,463 WARN L191 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 216 [2019-10-13 19:43:21,791 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-10-13 19:43:22,096 WARN L191 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2019-10-13 19:43:23,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 19:43:23,852 INFO L93 Difference]: Finished difference Result 1333 states and 1816 transitions. [2019-10-13 19:43:23,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-13 19:43:23,853 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2019-10-13 19:43:23,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 19:43:23,863 INFO L225 Difference]: With dead ends: 1333 [2019-10-13 19:43:23,863 INFO L226 Difference]: Without dead ends: 739 [2019-10-13 19:43:23,866 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=136, Invalid=326, Unknown=0, NotChecked=0, Total=462 [2019-10-13 19:43:23,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2019-10-13 19:43:24,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 649. [2019-10-13 19:43:24,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2019-10-13 19:43:24,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 817 transitions. [2019-10-13 19:43:24,004 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 817 transitions. Word has length 136 [2019-10-13 19:43:24,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 19:43:24,006 INFO L462 AbstractCegarLoop]: Abstraction has 649 states and 817 transitions. [2019-10-13 19:43:24,006 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 19:43:24,006 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 817 transitions. [2019-10-13 19:43:24,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-10-13 19:43:24,008 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 19:43:24,009 INFO L380 BasicCegarLoop]: trace histogram [6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 19:43:24,009 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 19:43:24,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 19:43:24,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1768602104, now seen corresponding path program 1 times [2019-10-13 19:43:24,009 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 19:43:24,010 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785022116] [2019-10-13 19:43:24,010 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:24,010 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 19:43:24,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 19:43:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,357 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2019-10-13 19:43:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 19:43:24,594 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-13 19:43:24,594 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785022116] [2019-10-13 19:43:24,595 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 19:43:24,595 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 19:43:24,595 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945462184] [2019-10-13 19:43:24,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 19:43:24,596 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 19:43:24,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 19:43:24,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-13 19:43:24,598 INFO L87 Difference]: Start difference. First operand 649 states and 817 transitions. Second operand 9 states. [2019-10-13 19:43:25,228 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 213 [2019-10-13 19:43:26,164 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 213