/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:02:01,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:02:02,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:02:02,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:02:02,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:02:02,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:02:02,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:02:02,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:02:02,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:02:02,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:02:02,063 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:02:02,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:02:02,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:02:02,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:02:02,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:02:02,070 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:02:02,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:02:02,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:02:02,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:02:02,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:02:02,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:02:02,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:02:02,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:02:02,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:02:02,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:02:02,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:02:02,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:02:02,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:02:02,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:02:02,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:02:02,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:02:02,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:02:02,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:02:02,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:02:02,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:02:02,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:02:02,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:02:02,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:02:02,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:02:02,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:02:02,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:02:02,100 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:02:02,113 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:02:02,113 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:02:02,115 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:02:02,116 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:02:02,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:02:02,116 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:02:02,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:02:02,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:02:02,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:02:02,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:02:02,118 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:02:02,118 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:02:02,119 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:02:02,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:02:02,119 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:02:02,119 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:02:02,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:02:02,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:02:02,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:02:02,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:02:02,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:02:02,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:02:02,121 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:02:02,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:02:02,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:02:02,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:02:02,538 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:02:02,539 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:02:02,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-11-07 00:02:02,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed05ff6fa/4aeb1fa171234883888a7c566b7e2d1e/FLAG8a757e2dd [2020-11-07 00:02:03,424 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:02:03,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-11-07 00:02:03,455 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed05ff6fa/4aeb1fa171234883888a7c566b7e2d1e/FLAG8a757e2dd [2020-11-07 00:02:03,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed05ff6fa/4aeb1fa171234883888a7c566b7e2d1e [2020-11-07 00:02:03,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:02:03,674 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:02:03,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:03,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:02:03,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:02:03,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:03" (1/1) ... [2020-11-07 00:02:03,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@557f2485 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:03, skipping insertion in model container [2020-11-07 00:02:03,685 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:03" (1/1) ... [2020-11-07 00:02:03,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:02:03,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:02:04,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:04,151 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:02:04,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:04,314 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:02:04,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:04 WrapperNode [2020-11-07 00:02:04,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:04,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:02:04,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:02:04,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:02:04,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:04" (1/1) ... [2020-11-07 00:02:04,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:04" (1/1) ... [2020-11-07 00:02:04,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:04" (1/1) ... [2020-11-07 00:02:04,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:04" (1/1) ... [2020-11-07 00:02:04,380 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:04" (1/1) ... [2020-11-07 00:02:04,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:04" (1/1) ... [2020-11-07 00:02:04,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:04" (1/1) ... [2020-11-07 00:02:04,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:02:04,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:02:04,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:02:04,421 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:02:04,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:02:04,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:02:04,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:02:04,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:04,517 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:02:04,517 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:02:04,517 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:02:04,518 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:02:04,518 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:02:04,518 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:02:04,518 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:02:04,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:02:04,518 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:02:04,519 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:02:04,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 00:02:04,519 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:02:04,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:04,519 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:02:04,520 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:02:04,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:02:04,520 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:02:04,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:02:04,520 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:02:04,521 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:02:04,521 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:02:04,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:02:04,521 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:02:04,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:02:04,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 00:02:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:02:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:02:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:02:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:02:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:02:04,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:04,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:04,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:04,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:02:04,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:02:04,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:02:04,523 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:02:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:02:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:02:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:02:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:02:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:02:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:02:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:02:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:02:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:02:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:02:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:02:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:02:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:02:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:02:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 00:02:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:02:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:02:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:02:04,526 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:02:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:02:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:02:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 00:02:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:02:04,527 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:02:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:02:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:02:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:02:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:02:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:02:04,528 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:02:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:02:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:02:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:02:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:02:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:02:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:04,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:02:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:02:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:02:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:02:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:04,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:02:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:02:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:02:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:02:04,531 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:02:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:02:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:02:04,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:02:05,895 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:02:05,896 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:02:05,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:05 BoogieIcfgContainer [2020-11-07 00:02:05,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:02:05,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:02:05,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:02:05,904 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:02:05,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:02:03" (1/3) ... [2020-11-07 00:02:05,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1346fb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:05, skipping insertion in model container [2020-11-07 00:02:05,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:04" (2/3) ... [2020-11-07 00:02:05,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1346fb9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:05, skipping insertion in model container [2020-11-07 00:02:05,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:05" (3/3) ... [2020-11-07 00:02:05,907 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-11-07 00:02:05,923 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:02:05,927 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:02:05,941 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:02:05,970 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:02:05,970 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:02:05,970 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:02:05,971 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:02:05,971 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:02:05,971 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:02:05,972 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:02:05,972 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:02:06,008 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-11-07 00:02:06,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:02:06,049 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:06,050 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] [2020-11-07 00:02:06,054 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:06,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:06,071 INFO L82 PathProgramCache]: Analyzing trace with hash 242518070, now seen corresponding path program 1 times [2020-11-07 00:02:06,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:06,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170533733] [2020-11-07 00:02:06,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:06,187 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:06,990 WARN L194 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:06,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:07,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:02:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:07,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170533733] [2020-11-07 00:02:07,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:07,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:02:07,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157335452] [2020-11-07 00:02:07,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:02:07,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:07,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:02:07,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:07,274 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 3 states. [2020-11-07 00:02:08,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:08,907 INFO L93 Difference]: Finished difference Result 471 states and 559 transitions. [2020-11-07 00:02:08,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:02:08,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:02:08,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:08,928 INFO L225 Difference]: With dead ends: 471 [2020-11-07 00:02:08,928 INFO L226 Difference]: Without dead ends: 294 [2020-11-07 00:02:08,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:08,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-11-07 00:02:09,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 253. [2020-11-07 00:02:09,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-11-07 00:02:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2020-11-07 00:02:09,105 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 159 [2020-11-07 00:02:09,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:09,106 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2020-11-07 00:02:09,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:02:09,107 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2020-11-07 00:02:09,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:02:09,110 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:09,111 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] [2020-11-07 00:02:09,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:02:09,111 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:09,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:09,112 INFO L82 PathProgramCache]: Analyzing trace with hash -980635980, now seen corresponding path program 1 times [2020-11-07 00:02:09,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:09,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584347303] [2020-11-07 00:02:09,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:09,117 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:09,663 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:09,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:09,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:09,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:09,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:09,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:09,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:09,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:09,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:02:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:09,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:02:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:09,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:02:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:09,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:09,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584347303] [2020-11-07 00:02:09,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:09,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:02:09,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747283365] [2020-11-07 00:02:09,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:02:09,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:09,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:02:09,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:02:09,779 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand 4 states. [2020-11-07 00:02:10,641 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:11,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:11,794 INFO L93 Difference]: Finished difference Result 376 states and 420 transitions. [2020-11-07 00:02:11,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:02:11,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:02:11,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:11,800 INFO L225 Difference]: With dead ends: 376 [2020-11-07 00:02:11,800 INFO L226 Difference]: Without dead ends: 277 [2020-11-07 00:02:11,803 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:02:11,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-11-07 00:02:11,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 243. [2020-11-07 00:02:11,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-11-07 00:02:11,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 260 transitions. [2020-11-07 00:02:11,908 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 260 transitions. Word has length 160 [2020-11-07 00:02:11,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:11,909 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 260 transitions. [2020-11-07 00:02:11,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:02:11,909 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 260 transitions. [2020-11-07 00:02:11,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-11-07 00:02:11,911 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:11,912 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, 1, 1, 1] [2020-11-07 00:02:11,912 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:02:11,912 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:11,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:11,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1871629372, now seen corresponding path program 1 times [2020-11-07 00:02:11,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:11,914 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937912052] [2020-11-07 00:02:11,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:11,917 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:12,400 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:12,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:12,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:12,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:12,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:12,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:12,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:12,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:12,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:12,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 00:02:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:12,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:12,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937912052] [2020-11-07 00:02:12,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:12,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:12,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317345964] [2020-11-07 00:02:12,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:12,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:12,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:12,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:12,613 INFO L87 Difference]: Start difference. First operand 243 states and 260 transitions. Second operand 9 states. [2020-11-07 00:02:13,337 WARN L194 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:13,812 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:02:14,240 WARN L194 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-11-07 00:02:14,680 WARN L194 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:15,084 WARN L194 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:15,509 WARN L194 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:16,804 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:19,222 INFO L93 Difference]: Finished difference Result 638 states and 728 transitions. [2020-11-07 00:02:19,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:02:19,228 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-11-07 00:02:19,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:19,234 INFO L225 Difference]: With dead ends: 638 [2020-11-07 00:02:19,234 INFO L226 Difference]: Without dead ends: 510 [2020-11-07 00:02:19,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 00:02:19,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-11-07 00:02:19,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 433. [2020-11-07 00:02:19,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-11-07 00:02:19,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 478 transitions. [2020-11-07 00:02:19,464 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 478 transitions. Word has length 169 [2020-11-07 00:02:19,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:19,467 INFO L481 AbstractCegarLoop]: Abstraction has 433 states and 478 transitions. [2020-11-07 00:02:19,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:19,467 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 478 transitions. [2020-11-07 00:02:19,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-11-07 00:02:19,471 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:19,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:02:19,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:02:19,472 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:19,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:19,473 INFO L82 PathProgramCache]: Analyzing trace with hash 122403665, now seen corresponding path program 1 times [2020-11-07 00:02:19,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:19,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644436590] [2020-11-07 00:02:19,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:19,481 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:19,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:19,943 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:19,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:20,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:20,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:20,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:20,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:20,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-11-07 00:02:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:20,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:02:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:20,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-11-07 00:02:20,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:20,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-11-07 00:02:20,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:20,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-11-07 00:02:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:20,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:20,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644436590] [2020-11-07 00:02:20,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:20,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:02:20,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669600293] [2020-11-07 00:02:20,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:02:20,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:20,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:02:20,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:02:20,192 INFO L87 Difference]: Start difference. First operand 433 states and 478 transitions. Second operand 6 states. [2020-11-07 00:02:20,941 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:23,003 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:23,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:23,816 INFO L93 Difference]: Finished difference Result 1103 states and 1286 transitions. [2020-11-07 00:02:23,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 00:02:23,818 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-11-07 00:02:23,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:23,828 INFO L225 Difference]: With dead ends: 1103 [2020-11-07 00:02:23,829 INFO L226 Difference]: Without dead ends: 785 [2020-11-07 00:02:23,832 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:02:23,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2020-11-07 00:02:24,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 667. [2020-11-07 00:02:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2020-11-07 00:02:24,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 736 transitions. [2020-11-07 00:02:24,119 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 736 transitions. Word has length 177 [2020-11-07 00:02:24,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:24,119 INFO L481 AbstractCegarLoop]: Abstraction has 667 states and 736 transitions. [2020-11-07 00:02:24,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:02:24,120 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 736 transitions. [2020-11-07 00:02:24,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:02:24,122 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:24,123 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:02:24,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:02:24,123 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:24,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:24,124 INFO L82 PathProgramCache]: Analyzing trace with hash 782034493, now seen corresponding path program 1 times [2020-11-07 00:02:24,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:24,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723265016] [2020-11-07 00:02:24,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:24,127 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:24,591 WARN L194 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:24,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:24,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:24,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:24,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:24,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:24,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:24,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:24,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:24,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:02:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:24,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:02:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:24,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:02:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:24,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:24,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723265016] [2020-11-07 00:02:24,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:24,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:24,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283281597] [2020-11-07 00:02:24,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:24,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:24,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:24,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:24,794 INFO L87 Difference]: Start difference. First operand 667 states and 736 transitions. Second operand 9 states. [2020-11-07 00:02:25,463 WARN L194 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:27,195 WARN L194 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:27,636 WARN L194 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:28,107 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:28,597 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:28,980 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:29,384 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:29,776 WARN L194 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:31,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:31,138 INFO L93 Difference]: Finished difference Result 1705 states and 1982 transitions. [2020-11-07 00:02:31,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:02:31,138 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:02:31,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:31,145 INFO L225 Difference]: With dead ends: 1705 [2020-11-07 00:02:31,146 INFO L226 Difference]: Without dead ends: 1153 [2020-11-07 00:02:31,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:02:31,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2020-11-07 00:02:31,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1070. [2020-11-07 00:02:31,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1070 states. [2020-11-07 00:02:31,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1197 transitions. [2020-11-07 00:02:31,602 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1197 transitions. Word has length 178 [2020-11-07 00:02:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:31,603 INFO L481 AbstractCegarLoop]: Abstraction has 1070 states and 1197 transitions. [2020-11-07 00:02:31,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:31,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1197 transitions. [2020-11-07 00:02:31,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:02:31,608 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:31,608 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:02:31,608 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:02:31,609 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:31,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:31,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1594184124, now seen corresponding path program 1 times [2020-11-07 00:02:31,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:31,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833288980] [2020-11-07 00:02:31,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:31,628 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:02:31,705 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:02:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:02:31,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:02:31,984 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:02:31,985 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:02:31,987 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:02:32,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:02:32 BoogieIcfgContainer [2020-11-07 00:02:32,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:02:32,027 INFO L168 Benchmark]: Toolchain (without parser) took 28356.67 ms. Allocated memory was 159.4 MB in the beginning and 513.8 MB in the end (delta: 354.4 MB). Free memory was 134.1 MB in the beginning and 432.3 MB in the end (delta: -298.2 MB). Peak memory consumption was 56.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:32,033 INFO L168 Benchmark]: CDTParser took 1.01 ms. Allocated memory is still 159.4 MB. Free memory was 132.2 MB in the beginning and 132.2 MB in the end (delta: 46.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:02:32,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.81 ms. Allocated memory is still 159.4 MB. Free memory was 133.3 MB in the beginning and 112.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:32,035 INFO L168 Benchmark]: Boogie Preprocessor took 101.13 ms. Allocated memory is still 159.4 MB. Free memory was 112.7 MB in the beginning and 108.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:32,036 INFO L168 Benchmark]: RCFGBuilder took 1478.65 ms. Allocated memory was 159.4 MB in the beginning and 195.0 MB in the end (delta: 35.7 MB). Free memory was 108.7 MB in the beginning and 128.9 MB in the end (delta: -20.1 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:32,036 INFO L168 Benchmark]: TraceAbstraction took 26123.19 ms. Allocated memory was 195.0 MB in the beginning and 513.8 MB in the end (delta: 318.8 MB). Free memory was 128.9 MB in the beginning and 432.3 MB in the end (delta: -303.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:32,050 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.01 ms. Allocated memory is still 159.4 MB. Free memory was 132.2 MB in the beginning and 132.2 MB in the end (delta: 46.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 638.81 ms. Allocated memory is still 159.4 MB. Free memory was 133.3 MB in the beginning and 112.7 MB in the end (delta: 20.6 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 101.13 ms. Allocated memory is still 159.4 MB. Free memory was 112.7 MB in the beginning and 108.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1478.65 ms. Allocated memory was 159.4 MB in the beginning and 195.0 MB in the end (delta: 35.7 MB). Free memory was 108.7 MB in the beginning and 128.9 MB in the end (delta: -20.1 MB). Peak memory consumption was 29.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26123.19 ms. Allocated memory was 195.0 MB in the beginning and 513.8 MB in the end (delta: 318.8 MB). Free memory was 128.9 MB in the beginning and 432.3 MB in the end (delta: -303.4 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L326] int cleanupTimeShifts = 4; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L732] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L402] int retValue_acc ; [L403] int tmp ; [L407] FCALL select_helpers() [L408] FCALL select_features() [L409] CALL, EXPR valid_product() [L545] int retValue_acc ; [L548] retValue_acc = 1 [L549] return (retValue_acc); [L409] RET, EXPR valid_product() [L409] tmp = valid_product() [L411] COND TRUE \read(tmp) [L413] FCALL setup() [L414] CALL runTest() [L393] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L443] COND TRUE waterLevel < 2 [L444] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) [L95] CALL stopSystem() [L278] COND FALSE !(\read(pumpRunning)) [L285] systemActive = 0 [L95] RET stopSystem() [L102] CALL timeShift() [L130] COND FALSE !(\read(pumpRunning)) [L137] COND FALSE !(\read(systemActive)) [L145] CALL __utac_acc__Specification3_spec__1() [L293] int tmp ; [L294] int tmp___0 ; [L295] int tmp___1 ; [L299] CALL, EXPR isMethaneLevelCritical() [L464] int retValue_acc ; [L467] retValue_acc = methaneLevelCritical [L468] return (retValue_acc); [L299] RET, EXPR isMethaneLevelCritical() [L299] tmp = isMethaneLevelCritical() [L301] COND FALSE !(\read(tmp)) [L305] CALL, EXPR getWaterLevel() [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); [L305] RET, EXPR getWaterLevel() [L305] tmp___0 = getWaterLevel() [L307] COND TRUE tmp___0 == 2 [L309] CALL, EXPR isPumpRunning() [L211] int retValue_acc ; [L214] retValue_acc = pumpRunning [L215] return (retValue_acc); [L309] RET, EXPR isPumpRunning() [L309] tmp___1 = isPumpRunning() [L311] COND FALSE !(\read(tmp___1)) [L315] CALL __automaton_fail() [L558] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product35.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 631 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 20.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1208 SDtfs, 1714 SDslu, 1558 SDs, 0 SdLazy, 3305 SolverSat, 556 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1070occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 353 StatesRemovedByMinimization, 5 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...