/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_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:01:52,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:01:52,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:01:53,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:01:53,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:01:53,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:01:53,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:01:53,040 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:01:53,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:01:53,050 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:01:53,052 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:01:53,053 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:01:53,053 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:01:53,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:01:53,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:01:53,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:01:53,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:01:53,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:01:53,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:01:53,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:01:53,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:01:53,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:01:53,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:01:53,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:01:53,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:01:53,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:01:53,113 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:01:53,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:01:53,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:01:53,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:01:53,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:01:53,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:01:53,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:01:53,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:01:53,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:01:53,124 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:01:53,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:01:53,125 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:01:53,125 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:01:53,126 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:01:53,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:01:53,128 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 00:01:53,150 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:01:53,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:01:53,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:01:53,156 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:01:53,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:01:53,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:01:53,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:01:53,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:01:53,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:01:53,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:01:53,159 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:01:53,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:01:53,159 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:01:53,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:01:53,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:01:53,161 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:01:53,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:01:53,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:01:53,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:01:53,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:01:53,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:01:53,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:01:53,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:01:53,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:01:53,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:01:53,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:01:53,653 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:01:53,654 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:01:53,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-11-07 00:01:53,746 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01155b622/d9b19f873c0549cfaa5b95f25f9c2c82/FLAGc4df93ecc [2020-11-07 00:01:54,454 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:01:54,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-11-07 00:01:54,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01155b622/d9b19f873c0549cfaa5b95f25f9c2c82/FLAGc4df93ecc [2020-11-07 00:01:54,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01155b622/d9b19f873c0549cfaa5b95f25f9c2c82 [2020-11-07 00:01:54,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:01:54,749 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:01:54,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:54,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:01:54,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:01:54,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:54" (1/1) ... [2020-11-07 00:01:54,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526d158b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:54, skipping insertion in model container [2020-11-07 00:01:54,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:54" (1/1) ... [2020-11-07 00:01:54,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:01:54,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:01:55,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:55,202 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:01:55,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:55,378 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:01:55,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:55 WrapperNode [2020-11-07 00:01:55,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:55,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:01:55,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:01:55,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:01:55,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:55" (1/1) ... [2020-11-07 00:01:55,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:55" (1/1) ... [2020-11-07 00:01:55,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:55" (1/1) ... [2020-11-07 00:01:55,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:55" (1/1) ... [2020-11-07 00:01:55,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:55" (1/1) ... [2020-11-07 00:01:55,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:55" (1/1) ... [2020-11-07 00:01:55,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:55" (1/1) ... [2020-11-07 00:01:55,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:01:55,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:01:55,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:01:55,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:01:55,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:55" (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 00:01:55,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:01:55,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:01:55,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:01:55,638 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:01:55,638 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:01:55,639 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:01:55,639 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:01:55,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:01:55,639 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:01:55,639 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:01:55,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 00:01:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:01:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:01:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:01:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:01:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:01:55,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:01:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:01:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:01:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:01:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:01:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:01:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:01:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:01:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:01:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:01:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:01:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:01:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:01:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:01:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:01:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:01:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:01:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 00:01:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 00:01:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:01:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:01:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:01:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:01:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:01:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:01:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:01:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:01:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:01:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:01:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:01:55,645 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:01:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:01:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:01:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:01:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:01:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:01:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:01:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 00:01:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:01:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:01:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:01:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:01:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:01:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:01:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:01:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:01:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:01:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:01:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:01:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:01:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:01:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:01:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:01:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:01:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:01:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:01:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:01:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:01:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:01:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:01:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:01:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:01:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:01:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:01:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 00:01:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:01:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:01:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:01:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:01:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:01:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:01:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 00:01:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:01:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:01:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:01:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:01:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:01:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:01:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:01:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:01:57,346 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:01:57,347 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:01:57,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:01:57 BoogieIcfgContainer [2020-11-07 00:01:57,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:01:57,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:01:57,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:01:57,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:01:57,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:01:54" (1/3) ... [2020-11-07 00:01:57,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3ee405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:01:57, skipping insertion in model container [2020-11-07 00:01:57,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:55" (2/3) ... [2020-11-07 00:01:57,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3ee405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:01:57, skipping insertion in model container [2020-11-07 00:01:57,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:01:57" (3/3) ... [2020-11-07 00:01:57,359 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c [2020-11-07 00:01:57,376 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:01:57,382 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:01:57,393 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:01:57,418 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:01:57,418 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:01:57,418 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:01:57,418 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:01:57,419 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:01:57,419 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:01:57,419 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:01:57,419 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:01:57,444 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states. [2020-11-07 00:01:57,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:01:57,466 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:57,467 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 00:01:57,467 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 00:01:57,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:57,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1239389217, now seen corresponding path program 1 times [2020-11-07 00:01:57,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:57,484 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564605386] [2020-11-07 00:01:57,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:57,564 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:57,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:58,562 WARN L194 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:58,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:58,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:58,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:58,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:58,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:58,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:01:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:58,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:01:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:58,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:01:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:58,736 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 00:01:58,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564605386] [2020-11-07 00:01:58,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:58,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:01:58,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66480762] [2020-11-07 00:01:58,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:01:58,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:58,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:01:58,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:01:58,778 INFO L87 Difference]: Start difference. First operand 329 states. Second operand 3 states. [2020-11-07 00:02:01,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:01,522 INFO L93 Difference]: Finished difference Result 496 states and 591 transitions. [2020-11-07 00:02:01,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:02:01,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:02:01,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:01,542 INFO L225 Difference]: With dead ends: 496 [2020-11-07 00:02:01,542 INFO L226 Difference]: Without dead ends: 307 [2020-11-07 00:02:01,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:01,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-11-07 00:02:01,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 265. [2020-11-07 00:02:01,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-11-07 00:02:01,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 288 transitions. [2020-11-07 00:02:01,693 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 288 transitions. Word has length 159 [2020-11-07 00:02:01,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:01,694 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 288 transitions. [2020-11-07 00:02:01,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:02:01,694 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 288 transitions. [2020-11-07 00:02:01,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:02:01,700 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:01,700 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 00:02:01,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:02:01,701 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 00:02:01,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:01,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1371743894, now seen corresponding path program 1 times [2020-11-07 00:02:01,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:01,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14135972] [2020-11-07 00:02:01,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:01,709 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:02,542 WARN L194 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:02,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:02,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:02,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:02,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:02,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:02,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:02,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:02,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:02:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:02,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:02:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:02,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:02:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:02,710 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 00:02:02,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14135972] [2020-11-07 00:02:02,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:02,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:02:02,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131266859] [2020-11-07 00:02:02,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:02:02,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:02,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:02:02,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:02:02,718 INFO L87 Difference]: Start difference. First operand 265 states and 288 transitions. Second operand 4 states. [2020-11-07 00:02:04,058 WARN L194 SmtUtils]: Spent 670.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:06,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:06,002 INFO L93 Difference]: Finished difference Result 406 states and 458 transitions. [2020-11-07 00:02:06,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:02:06,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:02:06,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:06,009 INFO L225 Difference]: With dead ends: 406 [2020-11-07 00:02:06,009 INFO L226 Difference]: Without dead ends: 290 [2020-11-07 00:02:06,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:02:06,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-11-07 00:02:06,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 255. [2020-11-07 00:02:06,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-11-07 00:02:06,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 275 transitions. [2020-11-07 00:02:06,120 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 275 transitions. Word has length 160 [2020-11-07 00:02:06,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:06,121 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 275 transitions. [2020-11-07 00:02:06,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:02:06,121 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 275 transitions. [2020-11-07 00:02:06,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 00:02:06,125 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:06,125 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 00:02:06,125 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:02:06,126 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 00:02:06,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:06,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1222908605, now seen corresponding path program 1 times [2020-11-07 00:02:06,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:06,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [975465265] [2020-11-07 00:02:06,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:06,132 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:06,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:06,996 WARN L194 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:06,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:07,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:07,105 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 129 [2020-11-07 00:02:07,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:02:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:02:07,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:02:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:07,206 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 00:02:07,207 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [975465265] [2020-11-07 00:02:07,207 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:07,207 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:02:07,208 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3185373] [2020-11-07 00:02:07,208 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:02:07,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:07,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:02:07,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:02:07,212 INFO L87 Difference]: Start difference. First operand 255 states and 275 transitions. Second operand 10 states. [2020-11-07 00:02:08,326 WARN L194 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:09,213 WARN L194 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:02:09,966 WARN L194 SmtUtils]: Spent 717.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 00:02:10,738 WARN L194 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:11,449 WARN L194 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:12,148 WARN L194 SmtUtils]: Spent 663.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:15,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:15,103 INFO L93 Difference]: Finished difference Result 452 states and 520 transitions. [2020-11-07 00:02:15,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:02:15,104 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-07 00:02:15,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:15,109 INFO L225 Difference]: With dead ends: 452 [2020-11-07 00:02:15,110 INFO L226 Difference]: Without dead ends: 312 [2020-11-07 00:02:15,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-11-07 00:02:15,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2020-11-07 00:02:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 255. [2020-11-07 00:02:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 255 states. [2020-11-07 00:02:15,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 274 transitions. [2020-11-07 00:02:15,237 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 274 transitions. Word has length 173 [2020-11-07 00:02:15,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:15,238 INFO L481 AbstractCegarLoop]: Abstraction has 255 states and 274 transitions. [2020-11-07 00:02:15,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:02:15,238 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 274 transitions. [2020-11-07 00:02:15,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-11-07 00:02:15,241 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:15,242 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 00:02:15,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:02:15,242 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 00:02:15,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:15,244 INFO L82 PathProgramCache]: Analyzing trace with hash 2038762191, now seen corresponding path program 1 times [2020-11-07 00:02:15,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:15,245 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207251044] [2020-11-07 00:02:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:15,251 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,051 WARN L194 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:16,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:16,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:16,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:16,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:02:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:02:16,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:02:16,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-07 00:02:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-11-07 00:02:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-11-07 00:02:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:16,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:16,258 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207251044] [2020-11-07 00:02:16,258 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:16,258 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:02:16,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817213463] [2020-11-07 00:02:16,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:02:16,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:16,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:02:16,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:02:16,260 INFO L87 Difference]: Start difference. First operand 255 states and 274 transitions. Second operand 10 states. [2020-11-07 00:02:17,377 WARN L194 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:21,345 WARN L194 SmtUtils]: Spent 616.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:22,237 WARN L194 SmtUtils]: Spent 647.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:22,987 WARN L194 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:23,697 WARN L194 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:24,416 WARN L194 SmtUtils]: Spent 677.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:25,498 WARN L194 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:26,374 WARN L194 SmtUtils]: Spent 640.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:27,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:27,740 INFO L93 Difference]: Finished difference Result 696 states and 855 transitions. [2020-11-07 00:02:27,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-07 00:02:27,745 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 186 [2020-11-07 00:02:27,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:27,751 INFO L225 Difference]: With dead ends: 696 [2020-11-07 00:02:27,752 INFO L226 Difference]: Without dead ends: 556 [2020-11-07 00:02:27,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-11-07 00:02:27,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2020-11-07 00:02:27,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 388. [2020-11-07 00:02:27,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-11-07 00:02:27,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 430 transitions. [2020-11-07 00:02:27,927 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 430 transitions. Word has length 186 [2020-11-07 00:02:27,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:27,928 INFO L481 AbstractCegarLoop]: Abstraction has 388 states and 430 transitions. [2020-11-07 00:02:27,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:02:27,928 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 430 transitions. [2020-11-07 00:02:27,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-11-07 00:02:27,932 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:27,932 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, 1, 1, 1, 1, 1] [2020-11-07 00:02:27,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:02:27,933 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 00:02:27,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:27,933 INFO L82 PathProgramCache]: Analyzing trace with hash 466379653, now seen corresponding path program 1 times [2020-11-07 00:02:27,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:27,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [777940031] [2020-11-07 00:02:27,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:27,937 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,592 WARN L194 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:28,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:28,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-11-07 00:02:28,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-11-07 00:02:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:02:28,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:02:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-11-07 00:02:28,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-11-07 00:02:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-11-07 00:02:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-11-07 00:02:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:28,778 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 00:02:28,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [777940031] [2020-11-07 00:02:28,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:28,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 00:02:28,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565554510] [2020-11-07 00:02:28,780 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 00:02:28,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:28,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 00:02:28,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 00:02:28,781 INFO L87 Difference]: Start difference. First operand 388 states and 430 transitions. Second operand 7 states. [2020-11-07 00:02:29,833 WARN L194 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:31,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:31,564 INFO L93 Difference]: Finished difference Result 621 states and 725 transitions. [2020-11-07 00:02:31,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 00:02:31,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-11-07 00:02:31,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:31,568 INFO L225 Difference]: With dead ends: 621 [2020-11-07 00:02:31,568 INFO L226 Difference]: Without dead ends: 348 [2020-11-07 00:02:31,569 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-11-07 00:02:31,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-11-07 00:02:31,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 282. [2020-11-07 00:02:31,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-11-07 00:02:31,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 297 transitions. [2020-11-07 00:02:31,688 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 297 transitions. Word has length 196 [2020-11-07 00:02:31,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:31,689 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 297 transitions. [2020-11-07 00:02:31,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 00:02:31,689 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 297 transitions. [2020-11-07 00:02:31,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-11-07 00:02:31,692 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:31,692 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 00:02:31,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:02:31,693 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 00:02:31,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:31,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1965308296, now seen corresponding path program 1 times [2020-11-07 00:02:31,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:31,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [141577116] [2020-11-07 00:02:31,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:31,697 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:02:31,772 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:02:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:02:31,837 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:02:32,080 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:02:32,080 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:02:32,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:02:32,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:02:32 BoogieIcfgContainer [2020-11-07 00:02:32,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:02:32,127 INFO L168 Benchmark]: Toolchain (without parser) took 37380.52 ms. Allocated memory was 151.0 MB in the beginning and 377.5 MB in the end (delta: 226.5 MB). Free memory was 126.6 MB in the beginning and 130.3 MB in the end (delta: -3.7 MB). Peak memory consumption was 223.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:32,128 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 117.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:02:32,134 INFO L168 Benchmark]: CACSL2BoogieTranslator took 624.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 104.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:32,135 INFO L168 Benchmark]: Boogie Preprocessor took 169.76 ms. Allocated memory is still 151.0 MB. Free memory was 104.6 MB in the beginning and 132.2 MB in the end (delta: -27.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:32,136 INFO L168 Benchmark]: RCFGBuilder took 1798.65 ms. Allocated memory is still 151.0 MB. Free memory was 132.2 MB in the beginning and 88.3 MB in the end (delta: 43.9 MB). Peak memory consumption was 65.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:32,136 INFO L168 Benchmark]: TraceAbstraction took 34771.29 ms. Allocated memory was 151.0 MB in the beginning and 377.5 MB in the end (delta: 226.5 MB). Free memory was 87.8 MB in the beginning and 130.3 MB in the end (delta: -42.5 MB). Peak memory consumption was 184.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:32,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 151.0 MB. Free memory was 125.3 MB in the beginning and 125.2 MB in the end (delta: 117.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 624.24 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 104.6 MB in the end (delta: 21.3 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 169.76 ms. Allocated memory is still 151.0 MB. Free memory was 104.6 MB in the beginning and 132.2 MB in the end (delta: -27.7 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1798.65 ms. Allocated memory is still 151.0 MB. Free memory was 132.2 MB in the beginning and 88.3 MB in the end (delta: 43.9 MB). Peak memory consumption was 65.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 34771.29 ms. Allocated memory was 151.0 MB in the beginning and 377.5 MB in the end (delta: 226.5 MB). Free memory was 87.8 MB in the beginning and 130.3 MB in the end (delta: -42.5 MB). Peak memory consumption was 184.0 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: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L138] int cleanupTimeShifts = 4; [L409] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L677] int pumpRunning = 0; [L678] int systemActive = 1; [L217] int retValue_acc ; [L218] int tmp ; [L222] FCALL select_helpers() [L223] FCALL select_features() [L224] CALL, EXPR valid_product() [L916] int retValue_acc ; [L919] retValue_acc = 1 [L920] return (retValue_acc); [L224] RET, EXPR valid_product() [L224] tmp = valid_product() [L226] COND TRUE \read(tmp) [L228] FCALL setup() [L229] CALL runTest() [L208] CALL test() [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 [L617] COND TRUE 1 [L619] COND TRUE splverifierCounter < 4 [L625] tmp = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp) [L629] CALL waterRise() [L67] COND TRUE waterLevel < 2 [L68] waterLevel = waterLevel + 1 [L629] RET waterRise() [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND TRUE \read(tmp___2) [L649] CALL startSystem() [L876] systemActive = 1 [L649] RET startSystem() [L662] CALL timeShift() [L685] COND FALSE !(\read(pumpRunning)) [L692] COND TRUE \read(systemActive) [L694] CALL processEnvironment() [L740] int tmp ; [L743] COND FALSE !(\read(pumpRunning)) [L758] CALL processEnvironment__wrappee__methaneQuery() [L714] int tmp ; [L717] COND FALSE !(\read(pumpRunning)) [L732] FCALL processEnvironment__wrappee__base() [L758] RET processEnvironment__wrappee__methaneQuery() [L694] RET processEnvironment() [L700] CALL __utac_acc__Specification3_spec__1() [L926] int tmp ; [L927] int tmp___0 ; [L928] int tmp___1 ; [L932] CALL, EXPR isMethaneLevelCritical() [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L932] RET, EXPR isMethaneLevelCritical() [L932] tmp = isMethaneLevelCritical() [L934] COND FALSE !(\read(tmp)) [L938] CALL, EXPR getWaterLevel() [L120] int retValue_acc ; [L123] retValue_acc = waterLevel [L124] return (retValue_acc); [L938] RET, EXPR getWaterLevel() [L938] tmp___0 = getWaterLevel() [L940] COND TRUE tmp___0 == 2 [L942] CALL, EXPR isPumpRunning() [L809] int retValue_acc ; [L812] retValue_acc = pumpRunning [L813] return (retValue_acc); [L942] RET, EXPR isPumpRunning() [L942] tmp___1 = isPumpRunning() [L944] COND FALSE !(\read(tmp___1)) [L948] CALL __automaton_fail() [L885] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product30.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 647 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 34.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 28.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1168 SDtfs, 2145 SDslu, 1501 SDs, 0 SdLazy, 3061 SolverSat, 660 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=388occurred 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, 368 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...