/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_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:01:09,996 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:01:10,000 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:01:10,038 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:01:10,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:01:10,040 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:01:10,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:01:10,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:01:10,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:01:10,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:01:10,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:01:10,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:01:10,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:01:10,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:01:10,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:01:10,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:01:10,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:01:10,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:01:10,071 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:01:10,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:01:10,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:01:10,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:01:10,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:01:10,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:01:10,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:01:10,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:01:10,086 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:01:10,087 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:01:10,087 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:01:10,088 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:01:10,089 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:01:10,090 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:01:10,090 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:01:10,091 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:01:10,092 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:01:10,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:01:10,094 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:01:10,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:01:10,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:01:10,095 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:01:10,096 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:01:10,097 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 00:01:10,109 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:01:10,109 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:01:10,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:01:10,111 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:01:10,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:01:10,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:01:10,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:01:10,112 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:01:10,112 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:01:10,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:01:10,113 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:01:10,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:01:10,113 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:01:10,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:01:10,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:01:10,114 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:01:10,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:01:10,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:01:10,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:01:10,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:01:10,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:01:10,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:01:10,115 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:01:10,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:01:10,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:01:10,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:01:10,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:01:10,510 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:01:10,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-11-07 00:01:10,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8604b696/48f62323c2e142febef5e9401fb92c32/FLAG596122ec9 [2020-11-07 00:01:11,299 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:01:11,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product18.cil.c [2020-11-07 00:01:11,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8604b696/48f62323c2e142febef5e9401fb92c32/FLAG596122ec9 [2020-11-07 00:01:11,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8604b696/48f62323c2e142febef5e9401fb92c32 [2020-11-07 00:01:11,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:01:11,617 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:01:11,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:11,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:01:11,626 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:01:11,627 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:11" (1/1) ... [2020-11-07 00:01:11,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b75267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:11, skipping insertion in model container [2020-11-07 00:01:11,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:11" (1/1) ... [2020-11-07 00:01:11,643 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:01:11,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:01:11,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:11,982 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:01:12,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:12,164 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:01:12,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:12 WrapperNode [2020-11-07 00:01:12,165 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:12,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:01:12,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:01:12,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:01:12,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:12" (1/1) ... [2020-11-07 00:01:12,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:12" (1/1) ... [2020-11-07 00:01:12,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:12" (1/1) ... [2020-11-07 00:01:12,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:12" (1/1) ... [2020-11-07 00:01:12,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:12" (1/1) ... [2020-11-07 00:01:12,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:12" (1/1) ... [2020-11-07 00:01:12,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:12" (1/1) ... [2020-11-07 00:01:12,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:01:12,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:01:12,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:01:12,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:01:12,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:12" (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 00:01:12,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:01:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:01:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:01:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:01:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:01:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:01:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:01:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:01:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:01:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:01:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:01:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:01:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:01:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:01:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:01:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 00:01:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:01:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:01:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:01:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:01:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:01:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:01:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:01:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:01:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:01:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:01:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:01:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:01:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:01:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:01:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 00:01:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 00:01:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:01:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:01:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:01:12,382 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:01:12,383 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:01:12,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:01:12,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:01:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:01:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:01:12,383 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:01:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:01:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:01:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:01:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:01:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:01:12,384 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:01:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:01:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:01:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:01:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:01:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:01:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:01:12,385 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:01:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:01:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:01:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:01:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:01:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:01:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:01:12,386 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:01:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 00:01:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:01:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:01:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:01:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:01:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:01:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:01:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:01:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:01:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:01:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:01:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:01:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:01:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:01:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:01:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:01:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:01:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:01:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:01:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 00:01:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:01:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:01:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:01:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 00:01:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:01:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:01:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:01:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:01:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:01:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:01:13,611 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:01:13,611 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:01:13,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:01:13 BoogieIcfgContainer [2020-11-07 00:01:13,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:01:13,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:01:13,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:01:13,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:01:13,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:01:11" (1/3) ... [2020-11-07 00:01:13,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e598b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:01:13, skipping insertion in model container [2020-11-07 00:01:13,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:12" (2/3) ... [2020-11-07 00:01:13,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e598b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:01:13, skipping insertion in model container [2020-11-07 00:01:13,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:01:13" (3/3) ... [2020-11-07 00:01:13,624 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product18.cil.c [2020-11-07 00:01:13,640 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:01:13,645 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:01:13,657 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:01:13,684 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:01:13,684 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:01:13,684 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:01:13,684 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:01:13,685 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:01:13,685 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:01:13,685 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:01:13,685 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:01:13,707 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states. [2020-11-07 00:01:13,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:01:13,728 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:13,729 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 00:01:13,730 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 00:01:13,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:13,736 INFO L82 PathProgramCache]: Analyzing trace with hash -95440502, now seen corresponding path program 1 times [2020-11-07 00:01:13,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:13,747 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1593941186] [2020-11-07 00:01:13,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:13,827 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,510 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:14,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:01:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:01:14,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:01:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:14,710 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 00:01:14,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1593941186] [2020-11-07 00:01:14,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:14,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:01:14,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447698036] [2020-11-07 00:01:14,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:01:14,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:14,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:01:14,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:01:14,737 INFO L87 Difference]: Start difference. First operand 305 states. Second operand 3 states. [2020-11-07 00:01:16,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:16,278 INFO L93 Difference]: Finished difference Result 454 states and 538 transitions. [2020-11-07 00:01:16,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:01:16,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:01:16,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:16,297 INFO L225 Difference]: With dead ends: 454 [2020-11-07 00:01:16,297 INFO L226 Difference]: Without dead ends: 285 [2020-11-07 00:01:16,302 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 00:01:16,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-11-07 00:01:16,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 245. [2020-11-07 00:01:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-11-07 00:01:16,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 263 transitions. [2020-11-07 00:01:16,466 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 263 transitions. Word has length 159 [2020-11-07 00:01:16,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:16,467 INFO L481 AbstractCegarLoop]: Abstraction has 245 states and 263 transitions. [2020-11-07 00:01:16,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:01:16,467 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 263 transitions. [2020-11-07 00:01:16,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:01:16,471 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:16,472 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] [2020-11-07 00:01:16,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:01:16,472 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 00:01:16,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:16,473 INFO L82 PathProgramCache]: Analyzing trace with hash 787652111, now seen corresponding path program 1 times [2020-11-07 00:01:16,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:16,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [659598182] [2020-11-07 00:01:16,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:16,478 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:16,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:16,996 WARN L194 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:16,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:17,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:17,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:17,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:17,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:17,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:17,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:17,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:17,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:17,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:01:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:17,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:01:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:17,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:01:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:17,117 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 00:01:17,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [659598182] [2020-11-07 00:01:17,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:17,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:01:17,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122479624] [2020-11-07 00:01:17,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:01:17,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:17,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:01:17,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:01:17,123 INFO L87 Difference]: Start difference. First operand 245 states and 263 transitions. Second operand 4 states. [2020-11-07 00:01:17,996 WARN L194 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:01:18,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:18,963 INFO L93 Difference]: Finished difference Result 364 states and 405 transitions. [2020-11-07 00:01:18,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:01:18,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:01:18,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:18,973 INFO L225 Difference]: With dead ends: 364 [2020-11-07 00:01:18,973 INFO L226 Difference]: Without dead ends: 268 [2020-11-07 00:01:18,977 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 00:01:18,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-11-07 00:01:19,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 235. [2020-11-07 00:01:19,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-11-07 00:01:19,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 250 transitions. [2020-11-07 00:01:19,105 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 250 transitions. Word has length 160 [2020-11-07 00:01:19,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:19,106 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 250 transitions. [2020-11-07 00:01:19,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:01:19,106 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 250 transitions. [2020-11-07 00:01:19,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 00:01:19,109 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:19,109 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] [2020-11-07 00:01:19,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:01:19,110 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 00:01:19,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:19,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1931807180, now seen corresponding path program 1 times [2020-11-07 00:01:19,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:19,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099416300] [2020-11-07 00:01:19,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:19,115 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:19,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:19,616 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:19,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:19,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:19,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:19,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:19,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:19,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:19,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:01:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:19,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:01:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:19,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:01:19,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:19,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:01:19,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:19,801 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 00:01:19,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099416300] [2020-11-07 00:01:19,802 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:19,802 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:01:19,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651659430] [2020-11-07 00:01:19,804 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:01:19,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:19,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:01:19,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:01:19,807 INFO L87 Difference]: Start difference. First operand 235 states and 250 transitions. Second operand 10 states. [2020-11-07 00:01:20,500 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:20,995 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:01:21,418 WARN L194 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 00:01:21,826 WARN L194 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:22,218 WARN L194 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:22,620 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:24,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:24,371 INFO L93 Difference]: Finished difference Result 410 states and 467 transitions. [2020-11-07 00:01:24,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:01:24,372 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-07 00:01:24,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:24,376 INFO L225 Difference]: With dead ends: 410 [2020-11-07 00:01:24,376 INFO L226 Difference]: Without dead ends: 290 [2020-11-07 00:01:24,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:01:24,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-11-07 00:01:24,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 235. [2020-11-07 00:01:24,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-11-07 00:01:24,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 249 transitions. [2020-11-07 00:01:24,455 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 249 transitions. Word has length 173 [2020-11-07 00:01:24,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:24,456 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 249 transitions. [2020-11-07 00:01:24,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:01:24,456 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 249 transitions. [2020-11-07 00:01:24,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-11-07 00:01:24,459 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:24,459 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] [2020-11-07 00:01:24,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:01:24,460 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 00:01:24,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:24,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1523518393, now seen corresponding path program 1 times [2020-11-07 00:01:24,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:24,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463231732] [2020-11-07 00:01:24,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:24,464 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:24,889 WARN L194 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:24,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:24,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:24,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:24,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:24,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:24,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:24,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:24,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:01:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:25,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:01:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:25,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:01:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:25,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-11-07 00:01:25,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:25,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-11-07 00:01:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:25,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 00:01:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:25,093 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 00:01:25,096 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463231732] [2020-11-07 00:01:25,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:25,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:01:25,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854209234] [2020-11-07 00:01:25,097 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:01:25,097 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:25,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:01:25,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:01:25,098 INFO L87 Difference]: Start difference. First operand 235 states and 249 transitions. Second operand 10 states. [2020-11-07 00:01:25,850 WARN L194 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:27,822 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:28,263 WARN L194 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:28,733 WARN L194 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:29,202 WARN L194 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:29,561 WARN L194 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:29,936 WARN L194 SmtUtils]: Spent 339.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:30,363 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:31,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:31,602 INFO L93 Difference]: Finished difference Result 632 states and 774 transitions. [2020-11-07 00:01:31,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-07 00:01:31,603 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 181 [2020-11-07 00:01:31,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:31,609 INFO L225 Difference]: With dead ends: 632 [2020-11-07 00:01:31,609 INFO L226 Difference]: Without dead ends: 512 [2020-11-07 00:01:31,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-11-07 00:01:31,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2020-11-07 00:01:31,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 346. [2020-11-07 00:01:31,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-11-07 00:01:31,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 377 transitions. [2020-11-07 00:01:31,778 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 377 transitions. Word has length 181 [2020-11-07 00:01:31,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:31,779 INFO L481 AbstractCegarLoop]: Abstraction has 346 states and 377 transitions. [2020-11-07 00:01:31,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:01:31,779 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 377 transitions. [2020-11-07 00:01:31,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-11-07 00:01:31,782 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:31,782 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:01:31,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:01:31,783 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 00:01:31,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:31,783 INFO L82 PathProgramCache]: Analyzing trace with hash -651110503, now seen corresponding path program 1 times [2020-11-07 00:01:31,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:31,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442238775] [2020-11-07 00:01:31,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:31,786 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:31,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,154 WARN L194 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:32,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-11-07 00:01:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:01:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:01:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:01:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:01:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-11-07 00:01:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-11-07 00:01:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-11-07 00:01:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:32,351 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 00:01:32,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442238775] [2020-11-07 00:01:32,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:32,352 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 00:01:32,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726434286] [2020-11-07 00:01:32,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 00:01:32,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:32,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 00:01:32,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:01:32,356 INFO L87 Difference]: Start difference. First operand 346 states and 377 transitions. Second operand 7 states. [2020-11-07 00:01:32,989 WARN L194 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:34,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:34,050 INFO L93 Difference]: Finished difference Result 569 states and 657 transitions. [2020-11-07 00:01:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:01:34,051 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-11-07 00:01:34,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:34,055 INFO L225 Difference]: With dead ends: 569 [2020-11-07 00:01:34,055 INFO L226 Difference]: Without dead ends: 338 [2020-11-07 00:01:34,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-11-07 00:01:34,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-11-07 00:01:34,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 272. [2020-11-07 00:01:34,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-11-07 00:01:34,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 287 transitions. [2020-11-07 00:01:34,158 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 287 transitions. Word has length 191 [2020-11-07 00:01:34,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:34,159 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 287 transitions. [2020-11-07 00:01:34,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 00:01:34,159 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 287 transitions. [2020-11-07 00:01:34,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-11-07 00:01:34,162 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:34,162 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, 1, 1, 1] [2020-11-07 00:01:34,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:01:34,163 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 00:01:34,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:34,163 INFO L82 PathProgramCache]: Analyzing trace with hash -1104912285, now seen corresponding path program 1 times [2020-11-07 00:01:34,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:34,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596388937] [2020-11-07 00:01:34,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:34,167 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:01:34,255 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:01:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:01:34,350 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:01:34,589 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:01:34,589 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:01:34,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:01:34,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:01:34 BoogieIcfgContainer [2020-11-07 00:01:34,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:01:34,634 INFO L168 Benchmark]: Toolchain (without parser) took 23019.14 ms. Allocated memory was 164.6 MB in the beginning and 420.5 MB in the end (delta: 255.9 MB). Free memory was 139.6 MB in the beginning and 357.9 MB in the end (delta: -218.3 MB). Peak memory consumption was 253.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:34,635 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 164.6 MB. Free memory is still 138.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:01:34,641 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.83 ms. Allocated memory is still 164.6 MB. Free memory was 139.1 MB in the beginning and 118.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:34,643 INFO L168 Benchmark]: Boogie Preprocessor took 91.70 ms. Allocated memory is still 164.6 MB. Free memory was 118.3 MB in the beginning and 114.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:34,643 INFO L168 Benchmark]: RCFGBuilder took 1347.08 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 114.3 MB in the beginning and 137.9 MB in the end (delta: -23.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:34,644 INFO L168 Benchmark]: TraceAbstraction took 21013.42 ms. Allocated memory was 198.2 MB in the beginning and 420.5 MB in the end (delta: 222.3 MB). Free memory was 137.4 MB in the beginning and 357.9 MB in the end (delta: -220.5 MB). Peak memory consumption was 216.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:01:34,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 164.6 MB. Free memory is still 138.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 546.83 ms. Allocated memory is still 164.6 MB. Free memory was 139.1 MB in the beginning and 118.3 MB in the end (delta: 20.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 91.70 ms. Allocated memory is still 164.6 MB. Free memory was 118.3 MB in the beginning and 114.5 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1347.08 ms. Allocated memory was 164.6 MB in the beginning and 198.2 MB in the end (delta: 33.6 MB). Free memory was 114.3 MB in the beginning and 137.9 MB in the end (delta: -23.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21013.42 ms. Allocated memory was 198.2 MB in the beginning and 420.5 MB in the end (delta: 222.3 MB). Free memory was 137.4 MB in the beginning and 357.9 MB in the end (delta: -220.5 MB). Peak memory consumption was 216.8 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: [L42] int cleanupTimeShifts = 4; [L151] int waterLevel = 1; [L152] int methaneLevelCritical = 0; [L409] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L610] int pumpRunning = 0; [L611] int systemActive = 1; [L123] int retValue_acc ; [L124] int tmp ; [L128] FCALL select_helpers() [L129] FCALL select_features() [L130] CALL, EXPR valid_product() [L864] int retValue_acc ; [L867] retValue_acc = 1 [L868] return (retValue_acc); [L130] RET, EXPR valid_product() [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L134] FCALL setup() [L135] CALL runTest() [L114] CALL test() [L772] int splverifierCounter ; [L773] int tmp ; [L774] int tmp___0 ; [L775] int tmp___1 ; [L776] int tmp___2 ; [L779] splverifierCounter = 0 [L781] COND TRUE 1 [L783] COND TRUE splverifierCounter < 4 [L789] tmp = __VERIFIER_nondet_int() [L791] COND TRUE \read(tmp) [L793] CALL waterRise() [L169] COND TRUE waterLevel < 2 [L170] waterLevel = waterLevel + 1 [L793] RET waterRise() [L799] tmp___0 = __VERIFIER_nondet_int() [L801] COND FALSE !(\read(tmp___0)) [L809] tmp___2 = __VERIFIER_nondet_int() [L811] COND TRUE \read(tmp___2) [L813] CALL startSystem() [L766] systemActive = 1 [L813] RET startSystem() [L826] CALL timeShift() [L618] COND FALSE !(\read(pumpRunning)) [L625] COND TRUE \read(systemActive) [L627] CALL processEnvironment() [L647] int tmp ; [L650] COND FALSE !(\read(pumpRunning)) [L665] FCALL processEnvironment__wrappee__base() [L627] RET processEnvironment() [L633] CALL __utac_acc__Specification3_spec__1() [L875] int tmp ; [L876] int tmp___0 ; [L877] int tmp___1 ; [L881] CALL, EXPR isMethaneLevelCritical() [L190] int retValue_acc ; [L193] retValue_acc = methaneLevelCritical [L194] return (retValue_acc); [L881] RET, EXPR isMethaneLevelCritical() [L881] tmp = isMethaneLevelCritical() [L883] COND FALSE !(\read(tmp)) [L887] CALL, EXPR getWaterLevel() [L222] int retValue_acc ; [L225] retValue_acc = waterLevel [L226] return (retValue_acc); [L887] RET, EXPR getWaterLevel() [L887] tmp___0 = getWaterLevel() [L889] COND TRUE tmp___0 == 2 [L891] CALL, EXPR isPumpRunning() [L699] int retValue_acc ; [L702] retValue_acc = pumpRunning [L703] return (retValue_acc); [L891] RET, EXPR isPumpRunning() [L891] tmp___1 = isPumpRunning() [L893] COND FALSE !(\read(tmp___1)) [L897] CALL __automaton_fail() [L912] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product18.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 626 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 16.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1089 SDtfs, 2000 SDslu, 1480 SDs, 0 SdLazy, 2720 SolverSat, 577 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 167 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=346occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 360 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...