/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_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:56:59,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:56:59,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:56:59,608 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:56:59,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:56:59,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:56:59,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:56:59,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:56:59,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:56:59,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:56:59,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:56:59,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:56:59,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:56:59,643 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:56:59,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:56:59,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:56:59,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:56:59,652 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:56:59,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:56:59,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:56:59,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:56:59,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:56:59,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:56:59,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:56:59,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:56:59,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:56:59,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:56:59,692 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:56:59,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:56:59,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:56:59,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:56:59,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:56:59,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:56:59,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:56:59,698 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:56:59,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:56:59,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:56:59,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:56:59,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:56:59,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:56:59,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:56:59,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 19:56:59,715 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:56:59,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:56:59,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:56:59,718 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:56:59,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:56:59,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:56:59,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:56:59,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:56:59,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:56:59,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:56:59,720 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:56:59,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:56:59,720 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:56:59,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:56:59,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:56:59,721 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:56:59,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:56:59,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:56:59,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:56:59,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:56:59,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:56:59,723 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:56:59,723 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:57:00,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:57:00,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:57:00,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:57:00,141 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:57:00,141 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:57:00,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2020-10-23 19:57:00,242 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fda1f6d6/91748bc0bd6b4b149a2aac54cb7c5320/FLAG4290685ef [2020-10-23 19:57:01,039 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:57:01,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product29.cil.c [2020-10-23 19:57:01,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fda1f6d6/91748bc0bd6b4b149a2aac54cb7c5320/FLAG4290685ef [2020-10-23 19:57:01,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fda1f6d6/91748bc0bd6b4b149a2aac54cb7c5320 [2020-10-23 19:57:01,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:57:01,343 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:57:01,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:01,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:57:01,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:57:01,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:01" (1/1) ... [2020-10-23 19:57:01,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e707f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:01, skipping insertion in model container [2020-10-23 19:57:01,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:01" (1/1) ... [2020-10-23 19:57:01,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:57:01,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:57:01,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:01,763 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:57:01,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:01,961 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:57:01,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:01 WrapperNode [2020-10-23 19:57:01,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:01,963 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:57:01,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:57:01,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:57:01,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:01" (1/1) ... [2020-10-23 19:57:01,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:01" (1/1) ... [2020-10-23 19:57:02,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:01" (1/1) ... [2020-10-23 19:57:02,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:01" (1/1) ... [2020-10-23 19:57:02,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:01" (1/1) ... [2020-10-23 19:57:02,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:01" (1/1) ... [2020-10-23 19:57:02,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:01" (1/1) ... [2020-10-23 19:57:02,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:57:02,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:57:02,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:57:02,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:57:02,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:01" (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 [2020-10-23 19:57:02,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:57:02,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:57:02,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:02,217 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:57:02,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:02,218 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:57:02,218 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:57:02,218 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:57:02,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:57:02,219 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:57:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:57:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 19:57:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:02,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:57:02,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:57:02,222 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:57:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:57:02,223 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:57:02,224 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:57:02,225 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:57:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:57:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:57:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:57:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:57:02,226 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:57:02,227 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:57:02,228 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:57:02,228 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:57:02,228 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:57:02,228 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:57:02,233 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:57:02,233 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:57:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:57:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:57:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:57:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:57:02,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 19:57:02,236 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:57:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:57:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:57:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:57:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:57:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:57:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:57:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:57:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:57:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:57:02,238 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:57:02,238 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:02,238 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:57:02,238 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:57:02,238 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:57:02,239 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:57:02,239 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 19:57:02,239 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:57:02,239 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:57:02,239 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:02,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:57:02,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:57:02,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:57:02,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:57:02,240 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:02,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:57:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:57:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:57:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:57:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:57:02,241 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:57:02,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:57:02,242 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:57:02,242 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:57:02,243 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:57:02,243 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:57:02,243 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:57:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:57:02,244 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:57:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:57:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:57:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:57:02,245 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:57:02,246 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:57:02,246 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:57:02,247 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:57:02,248 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 19:57:02,248 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-23 19:57:02,248 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:57:02,248 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 19:57:02,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:57:02,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:57:02,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:57:03,631 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:57:03,631 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:57:03,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:03 BoogieIcfgContainer [2020-10-23 19:57:03,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:57:03,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:57:03,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:57:03,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:57:03,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:57:01" (1/3) ... [2020-10-23 19:57:03,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3467de48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:03, skipping insertion in model container [2020-10-23 19:57:03,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:01" (2/3) ... [2020-10-23 19:57:03,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3467de48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:03, skipping insertion in model container [2020-10-23 19:57:03,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:03" (3/3) ... [2020-10-23 19:57:03,644 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product29.cil.c [2020-10-23 19:57:03,656 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:57:03,662 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:57:03,684 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:57:03,710 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:57:03,710 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:57:03,710 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:57:03,710 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:57:03,710 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:57:03,710 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:57:03,711 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:57:03,711 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:57:03,735 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-10-23 19:57:03,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:57:03,756 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:03,757 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] [2020-10-23 19:57:03,758 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]=== [2020-10-23 19:57:03,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:03,765 INFO L82 PathProgramCache]: Analyzing trace with hash 164481850, now seen corresponding path program 1 times [2020-10-23 19:57:03,775 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:03,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292599986] [2020-10-23 19:57:03,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:03,856 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:04,529 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:04,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:04,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:04,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:04,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:04,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:04,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:04,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:04,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:57:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:04,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:04,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:57:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:04,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292599986] [2020-10-23 19:57:04,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:04,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:57:04,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581503506] [2020-10-23 19:57:04,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:57:04,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:04,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:57:04,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:57:04,844 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 3 states. [2020-10-23 19:57:06,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:06,615 INFO L93 Difference]: Finished difference Result 487 states and 581 transitions. [2020-10-23 19:57:06,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:57:06,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:57:06,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:06,635 INFO L225 Difference]: With dead ends: 487 [2020-10-23 19:57:06,635 INFO L226 Difference]: Without dead ends: 302 [2020-10-23 19:57:06,641 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 [2020-10-23 19:57:06,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-10-23 19:57:06,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 261. [2020-10-23 19:57:06,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-10-23 19:57:06,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 284 transitions. [2020-10-23 19:57:06,845 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 284 transitions. Word has length 159 [2020-10-23 19:57:06,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:06,847 INFO L481 AbstractCegarLoop]: Abstraction has 261 states and 284 transitions. [2020-10-23 19:57:06,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:57:06,847 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 284 transitions. [2020-10-23 19:57:06,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:57:06,852 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:06,853 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] [2020-10-23 19:57:06,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:57:06,853 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]=== [2020-10-23 19:57:06,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:06,854 INFO L82 PathProgramCache]: Analyzing trace with hash -617236116, now seen corresponding path program 1 times [2020-10-23 19:57:06,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:06,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947778014] [2020-10-23 19:57:06,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:06,861 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:06,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:07,372 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:07,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:07,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:07,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:07,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:07,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:07,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:07,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:07,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:57:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:07,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:57:07,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:07,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:57:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:07,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:07,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947778014] [2020-10-23 19:57:07,508 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:07,508 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:57:07,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674410127] [2020-10-23 19:57:07,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:57:07,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:07,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:57:07,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:57:07,513 INFO L87 Difference]: Start difference. First operand 261 states and 284 transitions. Second operand 4 states. [2020-10-23 19:57:08,368 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:09,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:09,557 INFO L93 Difference]: Finished difference Result 401 states and 452 transitions. [2020-10-23 19:57:09,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:57:09,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:57:09,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:09,565 INFO L225 Difference]: With dead ends: 401 [2020-10-23 19:57:09,565 INFO L226 Difference]: Without dead ends: 285 [2020-10-23 19:57:09,568 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:57:09,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-23 19:57:09,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 251. [2020-10-23 19:57:09,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-23 19:57:09,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 271 transitions. [2020-10-23 19:57:09,706 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 271 transitions. Word has length 160 [2020-10-23 19:57:09,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:09,707 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 271 transitions. [2020-10-23 19:57:09,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:57:09,707 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 271 transitions. [2020-10-23 19:57:09,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 19:57:09,710 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:09,711 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:57:09,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:57:09,711 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]=== [2020-10-23 19:57:09,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:09,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1464124706, now seen corresponding path program 1 times [2020-10-23 19:57:09,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:09,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208706294] [2020-10-23 19:57:09,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:09,717 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:09,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,274 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:10,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:10,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:10,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:57:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 19:57:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:10,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:10,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208706294] [2020-10-23 19:57:10,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:10,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:57:10,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065021342] [2020-10-23 19:57:10,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:57:10,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:10,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:57:10,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:57:10,528 INFO L87 Difference]: Start difference. First operand 251 states and 271 transitions. Second operand 9 states. [2020-10-23 19:57:11,173 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:11,659 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:57:12,031 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:57:12,432 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:12,826 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:13,230 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:15,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:15,077 INFO L93 Difference]: Finished difference Result 421 states and 477 transitions. [2020-10-23 19:57:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 19:57:15,081 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 19:57:15,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:15,085 INFO L225 Difference]: With dead ends: 421 [2020-10-23 19:57:15,088 INFO L226 Difference]: Without dead ends: 285 [2020-10-23 19:57:15,090 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-10-23 19:57:15,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-10-23 19:57:15,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 251. [2020-10-23 19:57:15,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-10-23 19:57:15,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 270 transitions. [2020-10-23 19:57:15,233 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 270 transitions. Word has length 169 [2020-10-23 19:57:15,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:15,235 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 270 transitions. [2020-10-23 19:57:15,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:57:15,235 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 270 transitions. [2020-10-23 19:57:15,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-23 19:57:15,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:15,241 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] [2020-10-23 19:57:15,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:57:15,242 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]=== [2020-10-23 19:57:15,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:15,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1973193443, now seen corresponding path program 1 times [2020-10-23 19:57:15,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:15,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023839741] [2020-10-23 19:57:15,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:15,250 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,825 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:15,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:15,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 19:57:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:57:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:57:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:57:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 19:57:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:15,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-23 19:57:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:16,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:16,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023839741] [2020-10-23 19:57:16,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:16,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:57:16,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328464742] [2020-10-23 19:57:16,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:57:16,051 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:16,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:57:16,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:57:16,052 INFO L87 Difference]: Start difference. First operand 251 states and 270 transitions. Second operand 9 states. [2020-10-23 19:57:16,775 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:19,458 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:19,913 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:20,349 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:20,742 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:21,135 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:21,795 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:22,250 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:22,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:22,721 INFO L93 Difference]: Finished difference Result 593 states and 701 transitions. [2020-10-23 19:57:22,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:57:22,721 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 182 [2020-10-23 19:57:22,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:22,727 INFO L225 Difference]: With dead ends: 593 [2020-10-23 19:57:22,727 INFO L226 Difference]: Without dead ends: 457 [2020-10-23 19:57:22,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:57:22,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2020-10-23 19:57:22,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 380. [2020-10-23 19:57:22,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2020-10-23 19:57:22,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 422 transitions. [2020-10-23 19:57:22,909 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 422 transitions. Word has length 182 [2020-10-23 19:57:22,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:22,910 INFO L481 AbstractCegarLoop]: Abstraction has 380 states and 422 transitions. [2020-10-23 19:57:22,910 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:57:22,910 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 422 transitions. [2020-10-23 19:57:22,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-10-23 19:57:22,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:22,914 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] [2020-10-23 19:57:22,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:57:22,914 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]=== [2020-10-23 19:57:22,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:22,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1466683393, now seen corresponding path program 1 times [2020-10-23 19:57:22,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:22,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1943209606] [2020-10-23 19:57:22,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:22,918 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:22,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,293 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:23,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-10-23 19:57:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:57:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:57:23,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:57:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-10-23 19:57:23,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-23 19:57:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-23 19:57:23,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:23,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 19:57:23,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1943209606] [2020-10-23 19:57:23,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:23,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:57:23,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67263717] [2020-10-23 19:57:23,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:57:23,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:23,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:57:23,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:57:23,485 INFO L87 Difference]: Start difference. First operand 380 states and 422 transitions. Second operand 6 states. [2020-10-23 19:57:24,175 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:24,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:24,946 INFO L93 Difference]: Finished difference Result 560 states and 642 transitions. [2020-10-23 19:57:24,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 19:57:24,947 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2020-10-23 19:57:24,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:24,951 INFO L225 Difference]: With dead ends: 560 [2020-10-23 19:57:24,951 INFO L226 Difference]: Without dead ends: 295 [2020-10-23 19:57:24,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:57:24,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2020-10-23 19:57:25,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 274. [2020-10-23 19:57:25,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-10-23 19:57:25,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 289 transitions. [2020-10-23 19:57:25,074 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 289 transitions. Word has length 192 [2020-10-23 19:57:25,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:25,075 INFO L481 AbstractCegarLoop]: Abstraction has 274 states and 289 transitions. [2020-10-23 19:57:25,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:57:25,075 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 289 transitions. [2020-10-23 19:57:25,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-23 19:57:25,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:25,078 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] [2020-10-23 19:57:25,078 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:57:25,078 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]=== [2020-10-23 19:57:25,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:25,079 INFO L82 PathProgramCache]: Analyzing trace with hash 2132265585, now seen corresponding path program 1 times [2020-10-23 19:57:25,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:25,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631710560] [2020-10-23 19:57:25,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:25,082 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:25,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:57:25,157 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:57:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:57:25,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:57:25,439 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:57:25,439 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:57:25,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:57:25,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:57:25 BoogieIcfgContainer [2020-10-23 19:57:25,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:57:25,475 INFO L168 Benchmark]: Toolchain (without parser) took 24135.38 ms. Allocated memory was 154.1 MB in the beginning and 398.5 MB in the end (delta: 244.3 MB). Free memory was 130.3 MB in the beginning and 265.8 MB in the end (delta: -135.5 MB). Peak memory consumption was 109.6 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:25,476 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 154.1 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:57:25,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.65 ms. Allocated memory is still 154.1 MB. Free memory was 129.6 MB in the beginning and 108.4 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:25,483 INFO L168 Benchmark]: Boogie Preprocessor took 164.76 ms. Allocated memory is still 154.1 MB. Free memory was 108.4 MB in the beginning and 134.7 MB in the end (delta: -26.3 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:25,483 INFO L168 Benchmark]: RCFGBuilder took 1503.98 ms. Allocated memory is still 154.1 MB. Free memory was 134.7 MB in the beginning and 112.6 MB in the end (delta: 22.2 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:25,484 INFO L168 Benchmark]: TraceAbstraction took 21834.07 ms. Allocated memory was 154.1 MB in the beginning and 398.5 MB in the end (delta: 244.3 MB). Free memory was 112.0 MB in the beginning and 265.8 MB in the end (delta: -153.8 MB). Peak memory consumption was 90.5 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:25,496 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 154.1 MB. Free memory is still 128.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 613.65 ms. Allocated memory is still 154.1 MB. Free memory was 129.6 MB in the beginning and 108.4 MB in the end (delta: 21.2 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 164.76 ms. Allocated memory is still 154.1 MB. Free memory was 108.4 MB in the beginning and 134.7 MB in the end (delta: -26.3 MB). Peak memory consumption was 4.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1503.98 ms. Allocated memory is still 154.1 MB. Free memory was 134.7 MB in the beginning and 112.6 MB in the end (delta: 22.2 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 21834.07 ms. Allocated memory was 154.1 MB in the beginning and 398.5 MB in the end (delta: 244.3 MB). Free memory was 112.0 MB in the beginning and 265.8 MB in the end (delta: -153.8 MB). Peak memory consumption was 90.5 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: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L343] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int cleanupTimeShifts = 4; [L688] int pumpRunning = 0; [L689] int systemActive = 1; [L663] int retValue_acc ; [L664] int tmp ; [L668] FCALL select_helpers() [L669] FCALL select_features() [L670] CALL, EXPR valid_product() [L569] int retValue_acc ; [L572] retValue_acc = 1 [L573] return (retValue_acc); [L670] RET, EXPR valid_product() [L670] tmp = valid_product() [L672] COND TRUE \read(tmp) [L674] FCALL setup() [L675] CALL runTest() [L657] CALL test() [L884] int splverifierCounter ; [L885] int tmp ; [L886] int tmp___0 ; [L887] int tmp___1 ; [L888] int tmp___2 ; [L891] splverifierCounter = 0 [L893] COND TRUE 1 [L895] COND TRUE splverifierCounter < 4 [L901] tmp = __VERIFIER_nondet_int() [L903] COND TRUE \read(tmp) [L905] CALL waterRise() [L103] COND TRUE waterLevel < 2 [L104] waterLevel = waterLevel + 1 [L905] RET waterRise() [L911] tmp___0 = __VERIFIER_nondet_int() [L913] COND FALSE !(\read(tmp___0)) [L921] tmp___2 = __VERIFIER_nondet_int() [L923] COND TRUE \read(tmp___2) [L936] CALL timeShift() [L695] COND FALSE !(\read(pumpRunning)) [L702] COND TRUE \read(systemActive) [L704] CALL processEnvironment() [L750] int tmp ; [L753] COND FALSE !(\read(pumpRunning)) [L768] CALL processEnvironment__wrappee__methaneQuery() [L724] int tmp ; [L727] COND FALSE !(\read(pumpRunning)) [L742] FCALL processEnvironment__wrappee__base() [L768] RET processEnvironment__wrappee__methaneQuery() [L704] RET processEnvironment() [L710] CALL __utac_acc__Specification3_spec__1() [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L53] CALL, EXPR isMethaneLevelCritical() [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L53] RET, EXPR isMethaneLevelCritical() [L53] tmp = isMethaneLevelCritical() [L55] COND FALSE !(\read(tmp)) [L59] CALL, EXPR getWaterLevel() [L156] int retValue_acc ; [L159] retValue_acc = waterLevel [L160] return (retValue_acc); [L59] RET, EXPR getWaterLevel() [L59] tmp___0 = getWaterLevel() [L61] COND TRUE tmp___0 == 2 [L63] CALL, EXPR isPumpRunning() [L819] int retValue_acc ; [L822] retValue_acc = pumpRunning [L823] return (retValue_acc); [L63] RET, EXPR isPumpRunning() [L63] tmp___1 = isPumpRunning() [L65] COND FALSE !(\read(tmp___1)) [L69] CALL __automaton_fail() [L582] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product29.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 643 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 16.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1142 SDtfs, 1626 SDslu, 1377 SDs, 0 SdLazy, 2720 SolverSat, 479 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=380occurred 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: 0.7s AutomataMinimizationTime, 5 MinimizatonAttempts, 207 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...