/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:33:29,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:33:29,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:33:30,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:33:30,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:33:30,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:33:30,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:33:30,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:33:30,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:33:30,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:33:30,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:33:30,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:33:30,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:33:30,055 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:33:30,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:33:30,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:33:30,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:33:30,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:33:30,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:33:30,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:33:30,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:33:30,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:33:30,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:33:30,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:33:30,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:33:30,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:33:30,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:33:30,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:33:30,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:33:30,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:33:30,100 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:33:30,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:33:30,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:33:30,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:33:30,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:33:30,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:33:30,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:33:30,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:33:30,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:33:30,108 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:33:30,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:33:30,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 15:33:30,129 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:33:30,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:33:30,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:33:30,132 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:33:30,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:33:30,133 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:33:30,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:33:30,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:33:30,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:33:30,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:33:30,134 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:33:30,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:33:30,135 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:33:30,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:33:30,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:33:30,136 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:33:30,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:33:30,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:33:30,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:33:30,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:33:30,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:33:30,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:33:30,137 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:33:30,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:33:30,569 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:33:30,573 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:33:30,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:33:30,576 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:33:30,577 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-09-04 15:33:30,654 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6c16c181/a162da9929814ffda228060267262fd7/FLAG782d64a83 [2020-09-04 15:33:31,265 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:33:31,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product36.cil.c [2020-09-04 15:33:31,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6c16c181/a162da9929814ffda228060267262fd7/FLAG782d64a83 [2020-09-04 15:33:31,487 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c6c16c181/a162da9929814ffda228060267262fd7 [2020-09-04 15:33:31,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:33:31,504 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:33:31,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:33:31,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:33:31,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:33:31,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:33:31" (1/1) ... [2020-09-04 15:33:31,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4365ba2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:33:31, skipping insertion in model container [2020-09-04 15:33:31,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:33:31" (1/1) ... [2020-09-04 15:33:31,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:33:31,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:33:31,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:33:31,971 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:33:32,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:33:32,261 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:33:32,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:33:32 WrapperNode [2020-09-04 15:33:32,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:33:32,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:33:32,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:33:32,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:33:32,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:33:32" (1/1) ... [2020-09-04 15:33:32,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:33:32" (1/1) ... [2020-09-04 15:33:32,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:33:32" (1/1) ... [2020-09-04 15:33:32,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:33:32" (1/1) ... [2020-09-04 15:33:32,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:33:32" (1/1) ... [2020-09-04 15:33:32,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:33:32" (1/1) ... [2020-09-04 15:33:32,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:33:32" (1/1) ... [2020-09-04 15:33:32,368 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:33:32,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:33:32,369 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:33:32,369 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:33:32,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:33:32" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 15:33:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:33:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:33:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:33:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:33:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:33:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:33:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:33:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:33:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:33:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:33:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:33:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:33:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 15:33:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 15:33:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 15:33:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:33:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:33:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:33:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:33:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:33:32,472 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:33:32,473 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:33:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:33:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:33:32,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:33:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:33:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:33:32,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:33:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:33:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:33:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:33:32,477 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:33:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:33:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:33:32,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:33:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:33:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:33:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 15:33:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-04 15:33:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:33:32,480 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:33:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:33:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:33:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:33:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 15:33:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 15:33:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:33:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:33:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:33:32,481 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:33:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:33:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:33:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 15:33:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:33:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:33:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:33:32,482 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:33:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-04 15:33:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:33:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:33:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 15:33:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:33:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:33:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:33:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:33:32,483 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:33:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:33:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:33:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:33:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:33:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:33:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:33:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:33:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:33:32,484 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:33:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:33:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:33:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:33:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:33:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:33:32,485 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:33:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:33:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:33:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:33:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:33:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:33:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:33:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:33:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:33:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:33:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:33:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:33:33,730 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:33:33,731 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:33:33,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:33:33 BoogieIcfgContainer [2020-09-04 15:33:33,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:33:33,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:33:33,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:33:33,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:33:33,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:33:31" (1/3) ... [2020-09-04 15:33:33,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7d9934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:33:33, skipping insertion in model container [2020-09-04 15:33:33,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:33:32" (2/3) ... [2020-09-04 15:33:33,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7d9934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:33:33, skipping insertion in model container [2020-09-04 15:33:33,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:33:33" (3/3) ... [2020-09-04 15:33:33,749 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product36.cil.c [2020-09-04 15:33:33,761 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:33:33,773 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:33:33,798 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:33:33,831 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:33:33,831 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:33:33,831 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:33:33,832 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:33:33,832 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:33:33,832 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:33:33,832 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:33:33,832 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:33:33,859 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2020-09-04 15:33:33,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-04 15:33:33,882 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:33:33,884 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:33:33,884 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:33:33,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:33:33,892 INFO L82 PathProgramCache]: Analyzing trace with hash 391863934, now seen corresponding path program 1 times [2020-09-04 15:33:33,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:33:33,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10836569] [2020-09-04 15:33:33,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:33:33,999 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:33:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:34,716 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:33:34,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:33:34,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:34,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:33:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:34,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:33:34,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:34,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:33:34,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:34,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:33:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:34,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 15:33:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:34,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-04 15:33:34,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:34,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:33:34,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10836569] [2020-09-04 15:33:34,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:33:34,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:33:34,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756010693] [2020-09-04 15:33:34,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:33:34,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:33:34,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:33:34,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:33:34,971 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 3 states. [2020-09-04 15:33:36,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:33:36,301 INFO L93 Difference]: Finished difference Result 448 states and 534 transitions. [2020-09-04 15:33:36,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:33:36,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-04 15:33:36,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:33:36,325 INFO L225 Difference]: With dead ends: 448 [2020-09-04 15:33:36,325 INFO L226 Difference]: Without dead ends: 282 [2020-09-04 15:33:36,331 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 [2020-09-04 15:33:36,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-09-04 15:33:36,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 240. [2020-09-04 15:33:36,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-09-04 15:33:36,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 259 transitions. [2020-09-04 15:33:36,471 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 259 transitions. Word has length 142 [2020-09-04 15:33:36,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:33:36,472 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 259 transitions. [2020-09-04 15:33:36,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:33:36,473 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 259 transitions. [2020-09-04 15:33:36,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-04 15:33:36,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:33:36,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:33:36,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:33:36,478 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:33:36,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:33:36,478 INFO L82 PathProgramCache]: Analyzing trace with hash 1207117873, now seen corresponding path program 1 times [2020-09-04 15:33:36,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:33:36,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257199491] [2020-09-04 15:33:36,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:33:36,482 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:33:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:36,843 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:33:36,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:33:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:36,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:33:36,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:36,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:33:36,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:36,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:33:36,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:36,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:33:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:36,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:33:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:36,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:33:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:36,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:33:36,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257199491] [2020-09-04 15:33:36,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:33:36,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:33:36,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494971325] [2020-09-04 15:33:36,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:33:36,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:33:36,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:33:36,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:33:36,959 INFO L87 Difference]: Start difference. First operand 240 states and 259 transitions. Second operand 4 states. [2020-09-04 15:33:37,620 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:33:38,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:33:38,526 INFO L93 Difference]: Finished difference Result 352 states and 395 transitions. [2020-09-04 15:33:38,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:33:38,527 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-04 15:33:38,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:33:38,532 INFO L225 Difference]: With dead ends: 352 [2020-09-04 15:33:38,532 INFO L226 Difference]: Without dead ends: 265 [2020-09-04 15:33:38,534 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 [2020-09-04 15:33:38,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-04 15:33:38,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 230. [2020-09-04 15:33:38,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-04 15:33:38,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 246 transitions. [2020-09-04 15:33:38,626 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 246 transitions. Word has length 143 [2020-09-04 15:33:38,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:33:38,627 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 246 transitions. [2020-09-04 15:33:38,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:33:38,627 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 246 transitions. [2020-09-04 15:33:38,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-04 15:33:38,635 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:33:38,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:33:38,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:33:38,636 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:33:38,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:33:38,637 INFO L82 PathProgramCache]: Analyzing trace with hash -2086984222, now seen corresponding path program 1 times [2020-09-04 15:33:38,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:33:38,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455581081] [2020-09-04 15:33:38,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:33:38,640 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:33:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:39,222 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:33:39,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:33:39,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:39,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:33:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:39,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:33:39,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:39,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:33:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:39,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:33:39,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:39,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:33:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:39,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-04 15:33:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:39,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-04 15:33:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:39,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:33:39,502 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455581081] [2020-09-04 15:33:39,503 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:33:39,504 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 15:33:39,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222490492] [2020-09-04 15:33:39,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 15:33:39,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:33:39,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 15:33:39,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 15:33:39,508 INFO L87 Difference]: Start difference. First operand 230 states and 246 transitions. Second operand 10 states. [2020-09-04 15:33:40,059 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:33:40,398 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:33:40,698 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 15:33:40,997 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:33:41,302 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:33:41,630 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:33:42,577 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:33:44,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:33:44,605 INFO L93 Difference]: Finished difference Result 621 states and 722 transitions. [2020-09-04 15:33:44,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 15:33:44,606 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-09-04 15:33:44,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:33:44,614 INFO L225 Difference]: With dead ends: 621 [2020-09-04 15:33:44,614 INFO L226 Difference]: Without dead ends: 501 [2020-09-04 15:33:44,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-04 15:33:44,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2020-09-04 15:33:44,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 398. [2020-09-04 15:33:44,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-09-04 15:33:44,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 440 transitions. [2020-09-04 15:33:44,804 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 440 transitions. Word has length 156 [2020-09-04 15:33:44,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:33:44,805 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 440 transitions. [2020-09-04 15:33:44,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 15:33:44,805 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 440 transitions. [2020-09-04 15:33:44,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-04 15:33:44,807 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:33:44,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:33:44,808 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:33:44,808 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:33:44,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:33:44,809 INFO L82 PathProgramCache]: Analyzing trace with hash 228813241, now seen corresponding path program 1 times [2020-09-04 15:33:44,809 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:33:44,809 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [806010304] [2020-09-04 15:33:44,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:33:44,812 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:33:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:45,208 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:33:45,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:33:45,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:45,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:33:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:45,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:33:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:45,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:33:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:45,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:33:45,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:45,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:33:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:45,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-04 15:33:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:45,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-04 15:33:45,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:33:45,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [806010304] [2020-09-04 15:33:45,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:33:45,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 15:33:45,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885219001] [2020-09-04 15:33:45,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 15:33:45,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:33:45,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 15:33:45,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-04 15:33:45,434 INFO L87 Difference]: Start difference. First operand 398 states and 440 transitions. Second operand 14 states. [2020-09-04 15:33:45,901 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:33:46,299 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:33:46,577 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:33:46,887 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:33:47,189 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:33:47,472 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:33:48,264 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:33:49,418 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:33:49,748 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:33:50,196 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:33:50,544 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:33:50,842 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:33:51,144 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 15:33:51,451 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:33:51,751 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:33:52,041 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:33:52,458 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:33:52,861 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 15:33:53,181 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:33:53,566 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:33:55,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:33:55,527 INFO L93 Difference]: Finished difference Result 1336 states and 1677 transitions. [2020-09-04 15:33:55,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-04 15:33:55,528 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 161 [2020-09-04 15:33:55,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:33:55,537 INFO L225 Difference]: With dead ends: 1336 [2020-09-04 15:33:55,537 INFO L226 Difference]: Without dead ends: 1048 [2020-09-04 15:33:55,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-09-04 15:33:55,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2020-09-04 15:33:55,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 913. [2020-09-04 15:33:55,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 913 states. [2020-09-04 15:33:55,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1065 transitions. [2020-09-04 15:33:55,920 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1065 transitions. Word has length 161 [2020-09-04 15:33:55,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:33:55,920 INFO L479 AbstractCegarLoop]: Abstraction has 913 states and 1065 transitions. [2020-09-04 15:33:55,921 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 15:33:55,921 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1065 transitions. [2020-09-04 15:33:55,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-04 15:33:55,925 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:33:55,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:33:55,926 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:33:55,926 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:33:55,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:33:55,926 INFO L82 PathProgramCache]: Analyzing trace with hash -804462012, now seen corresponding path program 1 times [2020-09-04 15:33:55,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:33:55,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [968311569] [2020-09-04 15:33:55,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:33:55,930 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:33:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:56,277 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:33:56,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:33:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:56,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:33:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:56,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:33:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:56,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:33:56,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:56,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:33:56,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:56,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:33:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:56,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 15:33:56,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:56,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-04 15:33:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:56,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-04 15:33:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:56,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:33:56,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [968311569] [2020-09-04 15:33:56,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:33:56,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 15:33:56,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692108410] [2020-09-04 15:33:56,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 15:33:56,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:33:56,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 15:33:56,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 15:33:56,422 INFO L87 Difference]: Start difference. First operand 913 states and 1065 transitions. Second operand 6 states. [2020-09-04 15:33:56,923 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:33:59,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:33:59,011 INFO L93 Difference]: Finished difference Result 2180 states and 2682 transitions. [2020-09-04 15:33:59,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 15:33:59,014 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-09-04 15:33:59,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:33:59,022 INFO L225 Difference]: With dead ends: 2180 [2020-09-04 15:33:59,023 INFO L226 Difference]: Without dead ends: 1377 [2020-09-04 15:33:59,026 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-04 15:33:59,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2020-09-04 15:33:59,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1274. [2020-09-04 15:33:59,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1274 states. [2020-09-04 15:33:59,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 1492 transitions. [2020-09-04 15:33:59,480 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 1492 transitions. Word has length 166 [2020-09-04 15:33:59,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:33:59,480 INFO L479 AbstractCegarLoop]: Abstraction has 1274 states and 1492 transitions. [2020-09-04 15:33:59,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 15:33:59,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 1492 transitions. [2020-09-04 15:33:59,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-04 15:33:59,486 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:33:59,486 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:33:59,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:33:59,487 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:33:59,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:33:59,487 INFO L82 PathProgramCache]: Analyzing trace with hash 188083825, now seen corresponding path program 1 times [2020-09-04 15:33:59,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:33:59,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7763038] [2020-09-04 15:33:59,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:33:59,526 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:33:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:33:59,966 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:33:59,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:33:59,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:34:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:34:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:34:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:34:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-04 15:34:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-04 15:34:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 15:34:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-04 15:34:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-04 15:34:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-04 15:34:00,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:00,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:34:00,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7763038] [2020-09-04 15:34:00,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:34:00,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-04 15:34:00,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942735163] [2020-09-04 15:34:00,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 15:34:00,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:34:00,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 15:34:00,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-04 15:34:00,172 INFO L87 Difference]: Start difference. First operand 1274 states and 1492 transitions. Second operand 11 states. [2020-09-04 15:34:00,710 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:34:03,122 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:03,437 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:34:03,776 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:04,187 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:34:04,504 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:05,082 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:34:05,378 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:05,727 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:34:06,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:34:06,292 INFO L93 Difference]: Finished difference Result 1458 states and 1758 transitions. [2020-09-04 15:34:06,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-04 15:34:06,293 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 209 [2020-09-04 15:34:06,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:34:06,301 INFO L225 Difference]: With dead ends: 1458 [2020-09-04 15:34:06,301 INFO L226 Difference]: Without dead ends: 1455 [2020-09-04 15:34:06,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2020-09-04 15:34:06,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1455 states. [2020-09-04 15:34:06,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1455 to 1283. [2020-09-04 15:34:06,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2020-09-04 15:34:06,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1498 transitions. [2020-09-04 15:34:06,676 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1498 transitions. Word has length 209 [2020-09-04 15:34:06,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:34:06,677 INFO L479 AbstractCegarLoop]: Abstraction has 1283 states and 1498 transitions. [2020-09-04 15:34:06,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 15:34:06,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1498 transitions. [2020-09-04 15:34:06,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-09-04 15:34:06,685 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:34:06,685 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:34:06,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 15:34:06,686 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:34:06,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:34:06,686 INFO L82 PathProgramCache]: Analyzing trace with hash -841677132, now seen corresponding path program 1 times [2020-09-04 15:34:06,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:34:06,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980341922] [2020-09-04 15:34:06,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:34:06,698 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:34:06,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,055 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:34:07,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:34:07,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:34:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:34:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:34:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:34:07,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-04 15:34:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 15:34:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-04 15:34:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:07,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 15:34:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 15:34:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-04 15:34:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-09-04 15:34:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-04 15:34:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-04 15:34:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-09-04 15:34:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 15:34:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-09-04 15:34:07,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:07,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:34:07,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980341922] [2020-09-04 15:34:07,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:34:07,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-04 15:34:07,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037977258] [2020-09-04 15:34:07,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 15:34:07,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:34:07,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 15:34:07,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-09-04 15:34:07,421 INFO L87 Difference]: Start difference. First operand 1283 states and 1498 transitions. Second operand 15 states. [2020-09-04 15:34:07,936 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:34:08,846 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:34:10,111 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:34:10,470 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 15:34:10,860 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-04 15:34:11,263 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:34:11,596 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:34:11,954 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 15:34:12,329 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:34:12,685 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-04 15:34:13,005 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:34:13,387 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:34:13,795 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:34:14,153 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:34:15,896 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:16,215 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:34:16,561 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-04 15:34:16,922 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:34:17,280 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:34:17,588 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:34:19,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:34:19,147 INFO L93 Difference]: Finished difference Result 2984 states and 3815 transitions. [2020-09-04 15:34:19,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-09-04 15:34:19,147 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 249 [2020-09-04 15:34:19,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:34:19,159 INFO L225 Difference]: With dead ends: 2984 [2020-09-04 15:34:19,159 INFO L226 Difference]: Without dead ends: 1811 [2020-09-04 15:34:19,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=527, Invalid=2229, Unknown=0, NotChecked=0, Total=2756 [2020-09-04 15:34:19,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2020-09-04 15:34:19,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1305. [2020-09-04 15:34:19,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1305 states. [2020-09-04 15:34:19,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1513 transitions. [2020-09-04 15:34:19,675 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1513 transitions. Word has length 249 [2020-09-04 15:34:19,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:34:19,675 INFO L479 AbstractCegarLoop]: Abstraction has 1305 states and 1513 transitions. [2020-09-04 15:34:19,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 15:34:19,676 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1513 transitions. [2020-09-04 15:34:19,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-09-04 15:34:19,681 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:34:19,681 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:34:19,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 15:34:19,682 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:34:19,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:34:19,682 INFO L82 PathProgramCache]: Analyzing trace with hash -649112613, now seen corresponding path program 1 times [2020-09-04 15:34:19,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:34:19,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1819246554] [2020-09-04 15:34:19,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:34:19,698 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:34:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,088 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:34:20,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:34:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:34:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:34:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:34:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:34:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-04 15:34:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 15:34:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-04 15:34:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 15:34:20,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 15:34:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-04 15:34:20,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-04 15:34:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-09-04 15:34:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-09-04 15:34:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:20,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2020-09-04 15:34:20,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-09-04 15:34:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:34:20,370 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1819246554] [2020-09-04 15:34:20,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:34:20,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 15:34:20,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784019270] [2020-09-04 15:34:20,371 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 15:34:20,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:34:20,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 15:34:20,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-09-04 15:34:20,372 INFO L87 Difference]: Start difference. First operand 1305 states and 1513 transitions. Second operand 14 states. [2020-09-04 15:34:20,972 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:34:21,811 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:34:22,745 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:23,057 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:34:23,419 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:23,749 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:24,058 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:34:24,377 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:34:24,684 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:25,035 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:34:25,393 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:34:25,698 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:34:27,946 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:34:28,249 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:31,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:34:31,431 INFO L93 Difference]: Finished difference Result 3455 states and 4499 transitions. [2020-09-04 15:34:31,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-09-04 15:34:31,432 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 245 [2020-09-04 15:34:31,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:34:31,447 INFO L225 Difference]: With dead ends: 3455 [2020-09-04 15:34:31,448 INFO L226 Difference]: Without dead ends: 2619 [2020-09-04 15:34:31,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 659 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=617, Invalid=1639, Unknown=0, NotChecked=0, Total=2256 [2020-09-04 15:34:31,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2020-09-04 15:34:32,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 1704. [2020-09-04 15:34:32,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1704 states. [2020-09-04 15:34:32,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 2002 transitions. [2020-09-04 15:34:32,432 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 2002 transitions. Word has length 245 [2020-09-04 15:34:32,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:34:32,433 INFO L479 AbstractCegarLoop]: Abstraction has 1704 states and 2002 transitions. [2020-09-04 15:34:32,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 15:34:32,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 2002 transitions. [2020-09-04 15:34:32,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-04 15:34:32,440 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:34:32,441 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:34:32,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 15:34:32,441 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:34:32,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:34:32,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1464679499, now seen corresponding path program 1 times [2020-09-04 15:34:32,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:34:32,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723646746] [2020-09-04 15:34:32,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:34:32,452 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:34:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:32,818 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:34:32,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:34:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:32,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:34:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:32,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:34:32,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:32,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:34:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:32,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:34:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:32,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:34:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:32,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:34:32,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:32,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:32,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:32,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 15:34:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:33,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 15:34:33,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:33,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-04 15:34:33,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:33,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:33,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-04 15:34:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:33,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2020-09-04 15:34:33,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:33,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-04 15:34:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:33,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:34:33,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:33,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2020-09-04 15:34:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:33,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-09-04 15:34:33,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 15:34:33,113 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723646746] [2020-09-04 15:34:33,113 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:34:33,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-04 15:34:33,114 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685351572] [2020-09-04 15:34:33,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 15:34:33,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:34:33,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 15:34:33,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-09-04 15:34:33,115 INFO L87 Difference]: Start difference. First operand 1704 states and 2002 transitions. Second operand 15 states. [2020-09-04 15:34:33,695 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:34:33,997 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:34:34,297 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:34:34,598 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:34:34,877 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:34:35,946 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:34:36,239 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:34:36,617 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:34:36,955 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:34:37,252 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:34:39,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:34:39,221 INFO L93 Difference]: Finished difference Result 3359 states and 4131 transitions. [2020-09-04 15:34:39,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-04 15:34:39,221 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 240 [2020-09-04 15:34:39,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:34:39,232 INFO L225 Difference]: With dead ends: 3359 [2020-09-04 15:34:39,233 INFO L226 Difference]: Without dead ends: 1765 [2020-09-04 15:34:39,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-09-04 15:34:39,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1765 states. [2020-09-04 15:34:39,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1765 to 1493. [2020-09-04 15:34:39,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1493 states. [2020-09-04 15:34:39,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1736 transitions. [2020-09-04 15:34:39,952 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1736 transitions. Word has length 240 [2020-09-04 15:34:39,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:34:39,952 INFO L479 AbstractCegarLoop]: Abstraction has 1493 states and 1736 transitions. [2020-09-04 15:34:39,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 15:34:39,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1736 transitions. [2020-09-04 15:34:39,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-09-04 15:34:39,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:34:39,958 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 15:34:39,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 15:34:39,958 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:34:39,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:34:39,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1671121139, now seen corresponding path program 2 times [2020-09-04 15:34:39,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:34:39,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1969853572] [2020-09-04 15:34:39,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:34:39,978 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:34:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:34:40,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:34:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:34:40,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:34:40,609 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:34:40,610 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:34:40,611 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 15:34:40,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:34:40 BoogieIcfgContainer [2020-09-04 15:34:40,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:34:40,660 INFO L168 Benchmark]: Toolchain (without parser) took 69156.56 ms. Allocated memory was 143.7 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 101.0 MB in the beginning and 794.0 MB in the end (delta: -693.0 MB). Peak memory consumption was 454.2 MB. Max. memory is 7.1 GB. [2020-09-04 15:34:40,660 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 15:34:40,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 757.16 ms. Allocated memory was 143.7 MB in the beginning and 203.9 MB in the end (delta: 60.3 MB). Free memory was 100.8 MB in the beginning and 172.3 MB in the end (delta: -71.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-04 15:34:40,662 INFO L168 Benchmark]: Boogie Preprocessor took 105.62 ms. Allocated memory is still 203.9 MB. Free memory was 172.3 MB in the beginning and 168.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-04 15:34:40,662 INFO L168 Benchmark]: RCFGBuilder took 1370.48 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 168.2 MB in the beginning and 180.1 MB in the end (delta: -11.9 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. [2020-09-04 15:34:40,663 INFO L168 Benchmark]: TraceAbstraction took 66917.83 ms. Allocated memory was 237.0 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 180.1 MB in the beginning and 794.0 MB in the end (delta: -613.9 MB). Peak memory consumption was 439.9 MB. Max. memory is 7.1 GB. [2020-09-04 15:34:40,666 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 143.7 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 757.16 ms. Allocated memory was 143.7 MB in the beginning and 203.9 MB in the end (delta: 60.3 MB). Free memory was 100.8 MB in the beginning and 172.3 MB in the end (delta: -71.5 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.62 ms. Allocated memory is still 203.9 MB. Free memory was 172.3 MB in the beginning and 168.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1370.48 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 168.2 MB in the beginning and 180.1 MB in the end (delta: -11.9 MB). Peak memory consumption was 84.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 66917.83 ms. Allocated memory was 237.0 MB in the beginning and 1.3 GB in the end (delta: 1.1 GB). Free memory was 180.1 MB in the beginning and 794.0 MB in the end (delta: -613.9 MB). Peak memory consumption was 439.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 437]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L123] int pumpRunning = 0; [L124] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L611] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L809] int waterLevel = 1; [L810] int methaneLevelCritical = 0; [L375] int retValue_acc ; [L376] int tmp ; [L380] FCALL select_helpers() [L381] FCALL select_features() [L382] CALL, EXPR valid_product() [L424] int retValue_acc ; [L427] retValue_acc = 1 [L428] return (retValue_acc); [L382] RET, EXPR valid_product() [L382] tmp = valid_product() [L384] COND TRUE \read(tmp) [L386] FCALL setup() [L387] CALL runTest() [L366] CALL test() [L47] int splverifierCounter ; [L48] int tmp ; [L49] int tmp___0 ; [L50] int tmp___1 ; [L51] int tmp___2 ; [L54] splverifierCounter = 0 [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND TRUE \read(tmp) [L68] CALL waterRise() [L827] COND TRUE waterLevel < 2 [L828] waterLevel = waterLevel + 1 [L68] RET waterRise() [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L88] CALL startSystem() [L294] systemActive = 1 [L88] RET startSystem() [L103] CALL timeShift() [L131] COND FALSE !(\read(pumpRunning)) [L138] COND TRUE \read(systemActive) [L140] CALL processEnvironment() [L160] int tmp ; [L163] COND TRUE ! pumpRunning [L165] CALL, EXPR isHighWaterLevel() [L257] int retValue_acc ; [L258] int tmp ; [L259] int tmp___0 ; [L263] CALL, EXPR isHighWaterSensorDry() [L889] int retValue_acc ; [L892] COND FALSE !(waterLevel < 2) [L896] retValue_acc = 0 [L897] return (retValue_acc); [L263] RET, EXPR isHighWaterSensorDry() [L263] tmp = isHighWaterSensorDry() [L265] COND FALSE !(\read(tmp)) [L268] tmp___0 = 1 [L270] retValue_acc = tmp___0 [L271] return (retValue_acc); [L165] RET, EXPR isHighWaterLevel() [L165] tmp = isHighWaterLevel() [L167] COND TRUE \read(tmp) [L169] CALL activatePump() [L188] pumpRunning = 1 [L169] RET activatePump() [L140] RET processEnvironment() [L146] CALL __utac_acc__Specification4_spec__1() [L904] int tmp ; [L905] int tmp___0 ; [L909] CALL, EXPR getWaterLevel() [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); [L909] RET, EXPR getWaterLevel() [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) [L146] RET __utac_acc__Specification4_spec__1() [L103] RET timeShift() [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L88] CALL startSystem() [L294] systemActive = 1 [L88] RET startSystem() [L103] CALL timeShift() [L131] COND TRUE \read(pumpRunning) [L133] CALL lowerWaterLevel() [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 [L133] RET lowerWaterLevel() [L138] COND TRUE \read(systemActive) [L140] CALL processEnvironment() [L160] int tmp ; [L163] COND FALSE !(! pumpRunning) [L178] FCALL processEnvironment__wrappee__base() [L140] RET processEnvironment() [L146] CALL __utac_acc__Specification4_spec__1() [L904] int tmp ; [L905] int tmp___0 ; [L909] CALL, EXPR getWaterLevel() [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); [L909] RET, EXPR getWaterLevel() [L909] tmp = getWaterLevel() [L911] COND FALSE !(tmp == 0) [L146] RET __utac_acc__Specification4_spec__1() [L103] RET timeShift() [L56] COND TRUE 1 [L58] COND TRUE splverifierCounter < 4 [L64] tmp = __VERIFIER_nondet_int() [L66] COND FALSE !(\read(tmp)) [L74] tmp___0 = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp___0)) [L84] tmp___2 = __VERIFIER_nondet_int() [L86] COND TRUE \read(tmp___2) [L88] CALL startSystem() [L294] systemActive = 1 [L88] RET startSystem() [L103] CALL timeShift() [L131] COND TRUE \read(pumpRunning) [L133] CALL lowerWaterLevel() [L815] COND TRUE waterLevel > 0 [L816] waterLevel = waterLevel - 1 [L133] RET lowerWaterLevel() [L138] COND TRUE \read(systemActive) [L140] CALL processEnvironment() [L160] int tmp ; [L163] COND FALSE !(! pumpRunning) [L178] FCALL processEnvironment__wrappee__base() [L140] RET processEnvironment() [L146] CALL __utac_acc__Specification4_spec__1() [L904] int tmp ; [L905] int tmp___0 ; [L909] CALL, EXPR getWaterLevel() [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); [L909] RET, EXPR getWaterLevel() [L909] tmp = getWaterLevel() [L911] COND TRUE tmp == 0 [L913] CALL, EXPR isPumpRunning() [L212] int retValue_acc ; [L215] retValue_acc = pumpRunning [L216] return (retValue_acc); [L913] RET, EXPR isPumpRunning() [L913] tmp___0 = isPumpRunning() [L915] COND TRUE \read(tmp___0) [L917] CALL __automaton_fail() [L437] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 616 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 66.7s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 55.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2174 SDtfs, 5961 SDslu, 6053 SDs, 0 SdLazy, 12963 SolverSat, 2108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 22.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 502 GetRequests, 286 SyntacticMatches, 6 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1800 ImplicationChecksByTransitivity, 27.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1704occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 2283 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...