/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 22:45:40,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 22:45:40,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 22:45:40,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 22:45:40,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 22:45:40,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 22:45:40,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 22:45:40,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 22:45:40,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 22:45:40,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 22:45:40,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 22:45:40,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 22:45:40,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 22:45:40,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 22:45:40,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 22:45:40,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 22:45:40,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 22:45:40,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 22:45:40,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 22:45:40,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 22:45:40,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 22:45:40,283 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 22:45:40,284 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 22:45:40,285 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 22:45:40,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 22:45:40,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 22:45:40,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 22:45:40,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 22:45:40,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 22:45:40,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 22:45:40,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 22:45:40,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 22:45:40,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 22:45:40,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 22:45:40,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 22:45:40,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 22:45:40,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 22:45:40,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 22:45:40,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 22:45:40,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 22:45:40,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 22:45:40,298 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 [2020-07-19 22:45:40,313 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 22:45:40,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 22:45:40,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 22:45:40,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 22:45:40,314 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 22:45:40,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 22:45:40,315 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 22:45:40,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 22:45:40,315 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 22:45:40,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 22:45:40,316 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 22:45:40,316 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 22:45:40,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 22:45:40,316 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 22:45:40,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 22:45:40,317 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 22:45:40,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 22:45:40,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 22:45:40,317 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 22:45:40,317 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 22:45:40,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 22:45:40,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 22:45:40,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 22:45:40,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 22:45:40,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 22:45:40,319 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 22:45:40,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 22:45:40,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 22:45:40,319 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 22:45:40,319 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 22:45:40,602 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 22:45:40,622 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 22:45:40,625 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 22:45:40,627 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 22:45:40,629 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 22:45:40,630 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-07-19 22:45:40,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48f1e9914/abf3d106e6904e7983be44f00b27dcc2/FLAG8d89637ac [2020-07-19 22:45:41,216 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 22:45:41,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product53.cil.c [2020-07-19 22:45:41,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48f1e9914/abf3d106e6904e7983be44f00b27dcc2/FLAG8d89637ac [2020-07-19 22:45:41,599 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48f1e9914/abf3d106e6904e7983be44f00b27dcc2 [2020-07-19 22:45:41,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 22:45:41,610 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 22:45:41,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 22:45:41,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 22:45:41,614 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 22:45:41,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:45:41" (1/1) ... [2020-07-19 22:45:41,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7cae03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:41, skipping insertion in model container [2020-07-19 22:45:41,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:45:41" (1/1) ... [2020-07-19 22:45:41,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 22:45:41,692 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 22:45:42,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:45:42,152 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 22:45:42,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:45:42,267 INFO L208 MainTranslator]: Completed translation [2020-07-19 22:45:42,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:42 WrapperNode [2020-07-19 22:45:42,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 22:45:42,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 22:45:42,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 22:45:42,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 22:45:42,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:42" (1/1) ... [2020-07-19 22:45:42,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:42" (1/1) ... [2020-07-19 22:45:42,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:42" (1/1) ... [2020-07-19 22:45:42,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:42" (1/1) ... [2020-07-19 22:45:42,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:42" (1/1) ... [2020-07-19 22:45:42,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:42" (1/1) ... [2020-07-19 22:45:42,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:42" (1/1) ... [2020-07-19 22:45:42,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 22:45:42,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 22:45:42,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 22:45:42,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 22:45:42,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 22:45:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 22:45:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 22:45:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 22:45:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-19 22:45:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 22:45:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 22:45:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 22:45:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 22:45:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 22:45:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 22:45:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 22:45:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 22:45:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 22:45:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 22:45:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 22:45:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 22:45:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 22:45:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 22:45:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-19 22:45:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-19 22:45:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 22:45:42,441 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 22:45:42,441 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 22:45:42,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 22:45:42,441 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 22:45:42,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 22:45:42,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 22:45:42,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-19 22:45:42,443 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 22:45:42,444 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 22:45:42,444 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 22:45:42,444 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 22:45:42,444 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 22:45:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 22:45:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 22:45:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 22:45:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 22:45:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 22:45:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 22:45:42,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 22:45:42,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-19 22:45:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 22:45:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 22:45:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 22:45:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 22:45:42,446 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 22:45:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 22:45:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-19 22:45:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 22:45:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 22:45:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 22:45:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 22:45:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 22:45:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 22:45:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 22:45:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 22:45:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 22:45:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 22:45:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 22:45:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 22:45:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 22:45:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 22:45:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 22:45:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 22:45:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 22:45:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 22:45:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 22:45:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 22:45:42,451 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 22:45:42,451 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 22:45:42,451 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 22:45:42,451 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 22:45:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 22:45:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 22:45:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 22:45:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 22:45:42,452 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 22:45:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 22:45:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 22:45:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 22:45:42,454 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 22:45:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-19 22:45:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 22:45:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 22:45:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 22:45:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 22:45:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 22:45:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-19 22:45:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-19 22:45:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-19 22:45:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 22:45:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 22:45:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 22:45:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 22:45:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 22:45:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 22:45:43,518 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 22:45:43,519 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 22:45:43,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:45:43 BoogieIcfgContainer [2020-07-19 22:45:43,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 22:45:43,528 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 22:45:43,528 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 22:45:43,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 22:45:43,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:45:41" (1/3) ... [2020-07-19 22:45:43,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3753751a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:45:43, skipping insertion in model container [2020-07-19 22:45:43,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:45:42" (2/3) ... [2020-07-19 22:45:43,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3753751a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:45:43, skipping insertion in model container [2020-07-19 22:45:43,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:45:43" (3/3) ... [2020-07-19 22:45:43,535 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product53.cil.c [2020-07-19 22:45:43,546 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 22:45:43,555 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 22:45:43,569 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 22:45:43,588 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 22:45:43,589 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 22:45:43,589 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 22:45:43,589 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 22:45:43,589 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 22:45:43,589 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 22:45:43,589 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 22:45:43,590 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 22:45:43,612 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-19 22:45:43,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-19 22:45:43,622 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:43,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:43,624 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:43,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:43,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1737906003, now seen corresponding path program 1 times [2020-07-19 22:45:43,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:43,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523644924] [2020-07-19 22:45:43,640 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@34cf43f9 [2020-07-19 22:45:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:44,249 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:44,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:44,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:44,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:44,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:44,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523644924] [2020-07-19 22:45:44,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:44,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 22:45:44,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522976430] [2020-07-19 22:45:44,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 22:45:44,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:44,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 22:45:44,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:45:44,406 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 3 states. [2020-07-19 22:45:45,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:45:45,724 INFO L93 Difference]: Finished difference Result 329 states and 431 transitions. [2020-07-19 22:45:45,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 22:45:45,726 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-19 22:45:45,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:45:45,741 INFO L225 Difference]: With dead ends: 329 [2020-07-19 22:45:45,741 INFO L226 Difference]: Without dead ends: 177 [2020-07-19 22:45:45,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:45:45,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-07-19 22:45:45,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 143. [2020-07-19 22:45:45,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-07-19 22:45:45,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 170 transitions. [2020-07-19 22:45:45,839 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 170 transitions. Word has length 46 [2020-07-19 22:45:45,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:45:45,840 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 170 transitions. [2020-07-19 22:45:45,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 22:45:45,840 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 170 transitions. [2020-07-19 22:45:45,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-19 22:45:45,844 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:45,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:45,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 22:45:45,845 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:45,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:45,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1744597296, now seen corresponding path program 1 times [2020-07-19 22:45:45,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:45,846 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669841430] [2020-07-19 22:45:45,846 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@34cf43f9 [2020-07-19 22:45:45,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,206 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:46,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:46,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669841430] [2020-07-19 22:45:46,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:46,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 22:45:46,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106529381] [2020-07-19 22:45:46,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 22:45:46,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:46,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 22:45:46,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 22:45:46,261 INFO L87 Difference]: Start difference. First operand 143 states and 170 transitions. Second operand 4 states. [2020-07-19 22:45:46,679 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:45:47,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:45:47,631 INFO L93 Difference]: Finished difference Result 262 states and 322 transitions. [2020-07-19 22:45:47,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 22:45:47,632 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-19 22:45:47,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:45:47,636 INFO L225 Difference]: With dead ends: 262 [2020-07-19 22:45:47,637 INFO L226 Difference]: Without dead ends: 161 [2020-07-19 22:45:47,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 22:45:47,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-07-19 22:45:47,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 134. [2020-07-19 22:45:47,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-19 22:45:47,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2020-07-19 22:45:47,700 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 47 [2020-07-19 22:45:47,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:45:47,701 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2020-07-19 22:45:47,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 22:45:47,701 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2020-07-19 22:45:47,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 22:45:47,703 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:47,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:47,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 22:45:47,704 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:47,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:47,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1316795497, now seen corresponding path program 1 times [2020-07-19 22:45:47,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:47,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806025588] [2020-07-19 22:45:47,705 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@34cf43f9 [2020-07-19 22:45:47,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:48,030 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:48,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:48,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:48,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806025588] [2020-07-19 22:45:48,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:48,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:45:48,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095860079] [2020-07-19 22:45:48,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:45:48,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:48,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:45:48,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:45:48,125 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 8 states. [2020-07-19 22:45:48,520 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:45:48,870 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:49,108 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:49,336 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:50,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:45:50,632 INFO L93 Difference]: Finished difference Result 271 states and 336 transitions. [2020-07-19 22:45:50,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 22:45:50,633 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-19 22:45:50,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:45:50,636 INFO L225 Difference]: With dead ends: 271 [2020-07-19 22:45:50,636 INFO L226 Difference]: Without dead ends: 161 [2020-07-19 22:45:50,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-19 22:45:50,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-07-19 22:45:50,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 134. [2020-07-19 22:45:50,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-19 22:45:50,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 157 transitions. [2020-07-19 22:45:50,674 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 157 transitions. Word has length 51 [2020-07-19 22:45:50,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:45:50,674 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 157 transitions. [2020-07-19 22:45:50,674 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:45:50,675 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 157 transitions. [2020-07-19 22:45:50,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-19 22:45:50,677 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:50,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:50,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 22:45:50,678 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:50,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:50,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1654731465, now seen corresponding path program 1 times [2020-07-19 22:45:50,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:50,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578700344] [2020-07-19 22:45:50,679 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@34cf43f9 [2020-07-19 22:45:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:51,000 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:51,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:51,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:51,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:51,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:51,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578700344] [2020-07-19 22:45:51,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:51,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 22:45:51,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789666434] [2020-07-19 22:45:51,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 22:45:51,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:51,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 22:45:51,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-19 22:45:51,140 INFO L87 Difference]: Start difference. First operand 134 states and 157 transitions. Second operand 6 states. [2020-07-19 22:45:51,515 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:45:52,621 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:45:53,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:45:53,321 INFO L93 Difference]: Finished difference Result 369 states and 459 transitions. [2020-07-19 22:45:53,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 22:45:53,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-07-19 22:45:53,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:45:53,328 INFO L225 Difference]: With dead ends: 369 [2020-07-19 22:45:53,328 INFO L226 Difference]: Without dead ends: 259 [2020-07-19 22:45:53,329 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-19 22:45:53,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-19 22:45:53,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 218. [2020-07-19 22:45:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-19 22:45:53,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 248 transitions. [2020-07-19 22:45:53,384 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 248 transitions. Word has length 69 [2020-07-19 22:45:53,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:45:53,384 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 248 transitions. [2020-07-19 22:45:53,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 22:45:53,385 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 248 transitions. [2020-07-19 22:45:53,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-19 22:45:53,387 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:53,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:53,388 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 22:45:53,388 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:53,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:53,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1727174811, now seen corresponding path program 1 times [2020-07-19 22:45:53,389 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:53,389 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789394876] [2020-07-19 22:45:53,389 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@34cf43f9 [2020-07-19 22:45:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,683 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:53,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:53,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789394876] [2020-07-19 22:45:53,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:53,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:45:53,861 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162427649] [2020-07-19 22:45:53,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:45:53,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:53,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:45:53,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:45:53,863 INFO L87 Difference]: Start difference. First operand 218 states and 248 transitions. Second operand 8 states. [2020-07-19 22:45:54,312 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:45:55,482 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:55,746 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:55,970 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:45:56,189 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:45:56,492 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:45:57,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:45:57,609 INFO L93 Difference]: Finished difference Result 649 states and 794 transitions. [2020-07-19 22:45:57,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 22:45:57,610 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2020-07-19 22:45:57,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:45:57,614 INFO L225 Difference]: With dead ends: 649 [2020-07-19 22:45:57,615 INFO L226 Difference]: Without dead ends: 455 [2020-07-19 22:45:57,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-19 22:45:57,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2020-07-19 22:45:57,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 391. [2020-07-19 22:45:57,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-07-19 22:45:57,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 446 transitions. [2020-07-19 22:45:57,701 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 446 transitions. Word has length 83 [2020-07-19 22:45:57,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:45:57,702 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 446 transitions. [2020-07-19 22:45:57,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:45:57,702 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 446 transitions. [2020-07-19 22:45:57,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-19 22:45:57,703 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:45:57,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:45:57,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 22:45:57,704 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:45:57,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:45:57,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1108418135, now seen corresponding path program 1 times [2020-07-19 22:45:57,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:45:57,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686436379] [2020-07-19 22:45:57,705 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@34cf43f9 [2020-07-19 22:45:57,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,003 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:45:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:45:58,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:45:58,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686436379] [2020-07-19 22:45:58,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:45:58,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 22:45:58,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68007743] [2020-07-19 22:45:58,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 22:45:58,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:45:58,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 22:45:58,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 22:45:58,128 INFO L87 Difference]: Start difference. First operand 391 states and 446 transitions. Second operand 9 states. [2020-07-19 22:45:58,704 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:45:59,797 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:46:00,052 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:46:00,320 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:46:00,591 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:46:00,845 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:46:02,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:46:02,006 INFO L93 Difference]: Finished difference Result 494 states and 614 transitions. [2020-07-19 22:46:02,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-19 22:46:02,007 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 87 [2020-07-19 22:46:02,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:46:02,013 INFO L225 Difference]: With dead ends: 494 [2020-07-19 22:46:02,013 INFO L226 Difference]: Without dead ends: 491 [2020-07-19 22:46:02,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2020-07-19 22:46:02,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-07-19 22:46:02,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 391. [2020-07-19 22:46:02,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-07-19 22:46:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 445 transitions. [2020-07-19 22:46:02,100 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 445 transitions. Word has length 87 [2020-07-19 22:46:02,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:46:02,100 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 445 transitions. [2020-07-19 22:46:02,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 22:46:02,101 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 445 transitions. [2020-07-19 22:46:02,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-19 22:46:02,102 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:46:02,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:46:02,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 22:46:02,103 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:46:02,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:46:02,103 INFO L82 PathProgramCache]: Analyzing trace with hash 661895326, now seen corresponding path program 1 times [2020-07-19 22:46:02,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:46:02,104 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711637974] [2020-07-19 22:46:02,104 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@34cf43f9 [2020-07-19 22:46:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,335 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:46:02,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:46:02,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711637974] [2020-07-19 22:46:02,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:46:02,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-19 22:46:02,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614527832] [2020-07-19 22:46:02,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 22:46:02,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:46:02,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 22:46:02,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-07-19 22:46:02,500 INFO L87 Difference]: Start difference. First operand 391 states and 445 transitions. Second operand 9 states. [2020-07-19 22:46:03,573 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:46:03,845 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:46:04,091 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:46:04,327 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:46:05,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:46:05,569 INFO L93 Difference]: Finished difference Result 862 states and 1052 transitions. [2020-07-19 22:46:05,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 22:46:05,570 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2020-07-19 22:46:05,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:46:05,574 INFO L225 Difference]: With dead ends: 862 [2020-07-19 22:46:05,574 INFO L226 Difference]: Without dead ends: 495 [2020-07-19 22:46:05,576 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-07-19 22:46:05,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-07-19 22:46:05,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 401. [2020-07-19 22:46:05,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-07-19 22:46:05,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 455 transitions. [2020-07-19 22:46:05,651 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 455 transitions. Word has length 88 [2020-07-19 22:46:05,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:46:05,651 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 455 transitions. [2020-07-19 22:46:05,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 22:46:05,652 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 455 transitions. [2020-07-19 22:46:05,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-19 22:46:05,653 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:46:05,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:46:05,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-19 22:46:05,654 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:46:05,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:46:05,654 INFO L82 PathProgramCache]: Analyzing trace with hash 936654940, now seen corresponding path program 1 times [2020-07-19 22:46:05,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:46:05,655 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795972976] [2020-07-19 22:46:05,655 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@34cf43f9 [2020-07-19 22:46:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:05,913 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:46:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:05,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:06,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:06,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:06,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:46:06,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795972976] [2020-07-19 22:46:06,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:46:06,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-19 22:46:06,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126880534] [2020-07-19 22:46:06,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-19 22:46:06,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:46:06,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-19 22:46:06,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-07-19 22:46:06,074 INFO L87 Difference]: Start difference. First operand 401 states and 455 transitions. Second operand 11 states. [2020-07-19 22:46:06,616 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:46:06,864 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:46:07,095 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:46:07,698 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:46:07,948 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:46:08,196 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:46:09,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:46:09,434 INFO L93 Difference]: Finished difference Result 886 states and 1094 transitions. [2020-07-19 22:46:09,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 22:46:09,439 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2020-07-19 22:46:09,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:46:09,443 INFO L225 Difference]: With dead ends: 886 [2020-07-19 22:46:09,443 INFO L226 Difference]: Without dead ends: 509 [2020-07-19 22:46:09,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-07-19 22:46:09,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2020-07-19 22:46:09,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 409. [2020-07-19 22:46:09,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2020-07-19 22:46:09,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 463 transitions. [2020-07-19 22:46:09,543 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 463 transitions. Word has length 88 [2020-07-19 22:46:09,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:46:09,543 INFO L479 AbstractCegarLoop]: Abstraction has 409 states and 463 transitions. [2020-07-19 22:46:09,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-19 22:46:09,544 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 463 transitions. [2020-07-19 22:46:09,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-19 22:46:09,547 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:46:09,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:46:09,548 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-19 22:46:09,548 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:46:09,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:46:09,548 INFO L82 PathProgramCache]: Analyzing trace with hash -1408012101, now seen corresponding path program 1 times [2020-07-19 22:46:09,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:46:09,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847223986] [2020-07-19 22:46:09,549 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@34cf43f9 [2020-07-19 22:46:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,799 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:46:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:46:09,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:46:09,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847223986] [2020-07-19 22:46:09,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:46:09,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 22:46:09,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019919219] [2020-07-19 22:46:09,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-19 22:46:09,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:46:09,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-19 22:46:09,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-19 22:46:09,956 INFO L87 Difference]: Start difference. First operand 409 states and 463 transitions. Second operand 7 states. [2020-07-19 22:46:10,492 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:46:11,053 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:46:13,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:46:13,156 INFO L93 Difference]: Finished difference Result 1209 states and 1542 transitions. [2020-07-19 22:46:13,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-19 22:46:13,157 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2020-07-19 22:46:13,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:46:13,164 INFO L225 Difference]: With dead ends: 1209 [2020-07-19 22:46:13,164 INFO L226 Difference]: Without dead ends: 824 [2020-07-19 22:46:13,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-07-19 22:46:13,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-07-19 22:46:13,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 725. [2020-07-19 22:46:13,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 725 states. [2020-07-19 22:46:13,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 857 transitions. [2020-07-19 22:46:13,296 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 857 transitions. Word has length 88 [2020-07-19 22:46:13,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:46:13,296 INFO L479 AbstractCegarLoop]: Abstraction has 725 states and 857 transitions. [2020-07-19 22:46:13,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-19 22:46:13,297 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 857 transitions. [2020-07-19 22:46:13,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-19 22:46:13,298 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:46:13,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:46:13,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-19 22:46:13,299 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:46:13,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:46:13,299 INFO L82 PathProgramCache]: Analyzing trace with hash 350479285, now seen corresponding path program 1 times [2020-07-19 22:46:13,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:46:13,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376321090] [2020-07-19 22:46:13,300 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@34cf43f9 [2020-07-19 22:46:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:46:13,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:46:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:46:13,397 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:46:13,497 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 22:46:13,497 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 22:46:13,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-19 22:46:13,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:46:13 BoogieIcfgContainer [2020-07-19 22:46:13,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 22:46:13,667 INFO L168 Benchmark]: Toolchain (without parser) took 32055.70 ms. Allocated memory was 145.8 MB in the beginning and 609.7 MB in the end (delta: 464.0 MB). Free memory was 102.5 MB in the beginning and 117.8 MB in the end (delta: -15.3 MB). Peak memory consumption was 448.7 MB. Max. memory is 7.1 GB. [2020-07-19 22:46:13,668 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 22:46:13,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.18 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.0 MB in the beginning and 168.8 MB in the end (delta: -66.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-07-19 22:46:13,675 INFO L168 Benchmark]: Boogie Preprocessor took 92.84 ms. Allocated memory is still 202.4 MB. Free memory was 168.8 MB in the beginning and 164.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-19 22:46:13,675 INFO L168 Benchmark]: RCFGBuilder took 1165.08 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 164.8 MB in the beginning and 191.2 MB in the end (delta: -26.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. [2020-07-19 22:46:13,676 INFO L168 Benchmark]: TraceAbstraction took 30135.05 ms. Allocated memory was 236.5 MB in the beginning and 609.7 MB in the end (delta: 373.3 MB). Free memory was 191.2 MB in the beginning and 117.8 MB in the end (delta: 73.4 MB). Peak memory consumption was 446.7 MB. Max. memory is 7.1 GB. [2020-07-19 22:46:13,679 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 657.18 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.0 MB in the beginning and 168.8 MB in the end (delta: -66.8 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.84 ms. Allocated memory is still 202.4 MB. Free memory was 168.8 MB in the beginning and 164.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1165.08 ms. Allocated memory was 202.4 MB in the beginning and 236.5 MB in the end (delta: 34.1 MB). Free memory was 164.8 MB in the beginning and 191.2 MB in the end (delta: -26.4 MB). Peak memory consumption was 81.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30135.05 ms. Allocated memory was 236.5 MB in the beginning and 609.7 MB in the end (delta: 373.3 MB). Free memory was 191.2 MB in the beginning and 117.8 MB in the end (delta: 73.4 MB). Peak memory consumption was 446.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 73]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L554] int pumpRunning = 0; [L555] int systemActive = 1; [L878] int waterLevel = 1; [L879] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=172, \old(head)=176, \old(head)=164, \old(methaneLevelCritical)=147, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] int retValue_acc ; [L526] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] int retValue_acc ; [L871] retValue_acc = 1 [L872] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L532] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L536] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L537] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L778] int splverifierCounter ; [L779] int tmp ; [L780] int tmp___0 ; [L781] int tmp___1 ; [L782] int tmp___2 ; [L785] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L787] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L789] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L795] tmp = __VERIFIER_nondet_int() [L797] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L799] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L896] COND TRUE waterLevel < 2 [L897] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L799] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L805] tmp___0 = __VERIFIER_nondet_int() [L807] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L809] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L908] COND FALSE !(\read(methaneLevelCritical)) [L911] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L809] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, waterLevel=2] [L815] tmp___2 = __VERIFIER_nondet_int() [L817] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=1, tmp___2=-2, waterLevel=2] [L830] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L561] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L568] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L570] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L642] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L645] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L660] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L616] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L619] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L634] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L590] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L593] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L739] int retValue_acc ; [L740] int tmp ; [L741] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L958] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L961] COND FALSE !(waterLevel < 2) [L965] retValue_acc = 0 [L966] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L745] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L745] tmp = isHighWaterSensorDry() [L747] COND FALSE !(\read(tmp)) [L750] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L752] retValue_acc = tmp___0 [L753] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L595] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L595] tmp = isHighWaterLevel() [L597] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L599] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L670] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L634] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L660] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L570] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L576] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L917] int retValue_acc ; [L920] retValue_acc = methaneLevelCritical [L921] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L49] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L694] int retValue_acc ; [L697] retValue_acc = pumpRunning [L698] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L73] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 29.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 24.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1165 SDtfs, 2093 SDslu, 1031 SDs, 0 SdLazy, 5381 SolverSat, 1306 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 237 SyntacticMatches, 4 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=725occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 586 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 739 NumberOfCodeBlocks, 739 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 638 ConstructedInterpolants, 0 QuantifiedInterpolants, 200772 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...