/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 22:00:09,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 22:00:09,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 22:00:09,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 22:00:09,076 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 22:00:09,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 22:00:09,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 22:00:09,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 22:00:09,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 22:00:09,087 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 22:00:09,088 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 22:00:09,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 22:00:09,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 22:00:09,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 22:00:09,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 22:00:09,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 22:00:09,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 22:00:09,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 22:00:09,113 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 22:00:09,116 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 22:00:09,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 22:00:09,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 22:00:09,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 22:00:09,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 22:00:09,128 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 22:00:09,129 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 22:00:09,129 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 22:00:09,130 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 22:00:09,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 22:00:09,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 22:00:09,136 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 22:00:09,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 22:00:09,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 22:00:09,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 22:00:09,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 22:00:09,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 22:00:09,147 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 22:00:09,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 22:00:09,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 22:00:09,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 22:00:09,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 22:00:09,155 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 22:00:09,178 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 22:00:09,179 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 22:00:09,184 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 22:00:09,184 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 22:00:09,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 22:00:09,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 22:00:09,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 22:00:09,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 22:00:09,186 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 22:00:09,186 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 22:00:09,187 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 22:00:09,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 22:00:09,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 22:00:09,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 22:00:09,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 22:00:09,189 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 22:00:09,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 22:00:09,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 22:00:09,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 22:00:09,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 22:00:09,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 22:00:09,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 22:00:09,190 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 22:00:09,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 22:00:09,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 22:00:09,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 22:00:09,653 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 22:00:09,654 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 22:00:09,655 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2021-02-23 22:00:09,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/714e09c90/1ac91e9b656349a29616d87944fbeb8c/FLAG7cc60d48c [2021-02-23 22:00:10,368 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 22:00:10,369 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2021-02-23 22:00:10,386 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/714e09c90/1ac91e9b656349a29616d87944fbeb8c/FLAG7cc60d48c [2021-02-23 22:00:10,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/714e09c90/1ac91e9b656349a29616d87944fbeb8c [2021-02-23 22:00:10,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 22:00:10,706 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 22:00:10,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 22:00:10,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 22:00:10,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 22:00:10,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:00:10" (1/1) ... [2021-02-23 22:00:10,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdc68ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:10, skipping insertion in model container [2021-02-23 22:00:10,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 10:00:10" (1/1) ... [2021-02-23 22:00:10,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 22:00:10,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 22:00:11,192 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c[17631,17644] [2021-02-23 22:00:11,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:00:11,209 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 22:00:11,356 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c[17631,17644] [2021-02-23 22:00:11,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 22:00:11,412 INFO L208 MainTranslator]: Completed translation [2021-02-23 22:00:11,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:11 WrapperNode [2021-02-23 22:00:11,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 22:00:11,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 22:00:11,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 22:00:11,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 22:00:11,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:11" (1/1) ... [2021-02-23 22:00:11,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:11" (1/1) ... [2021-02-23 22:00:11,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:11" (1/1) ... [2021-02-23 22:00:11,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:11" (1/1) ... [2021-02-23 22:00:11,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:11" (1/1) ... [2021-02-23 22:00:11,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:11" (1/1) ... [2021-02-23 22:00:11,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:11" (1/1) ... [2021-02-23 22:00:11,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 22:00:11,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 22:00:11,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 22:00:11,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 22:00:11,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:11" (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 [2021-02-23 22:00:11,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 22:00:11,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 22:00:11,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2021-02-23 22:00:11,637 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 22:00:11,637 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2021-02-23 22:00:11,637 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2021-02-23 22:00:11,637 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2021-02-23 22:00:11,637 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2021-02-23 22:00:11,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2021-02-23 22:00:11,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2021-02-23 22:00:11,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2021-02-23 22:00:11,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2021-02-23 22:00:11,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2021-02-23 22:00:11,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2021-02-23 22:00:11,638 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-02-23 22:00:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2021-02-23 22:00:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2021-02-23 22:00:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2021-02-23 22:00:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 22:00:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2021-02-23 22:00:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-02-23 22:00:11,639 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-02-23 22:00:11,640 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2021-02-23 22:00:11,640 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2021-02-23 22:00:11,640 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-02-23 22:00:11,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-02-23 22:00:11,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-02-23 22:00:11,640 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2021-02-23 22:00:11,641 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2021-02-23 22:00:11,641 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2021-02-23 22:00:11,641 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2021-02-23 22:00:11,641 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2021-02-23 22:00:11,641 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2021-02-23 22:00:11,641 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-02-23 22:00:11,642 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-02-23 22:00:11,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-02-23 22:00:11,642 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2021-02-23 22:00:11,642 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2021-02-23 22:00:11,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2021-02-23 22:00:11,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-02-23 22:00:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 22:00:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 22:00:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 22:00:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 22:00:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 22:00:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2021-02-23 22:00:11,643 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2021-02-23 22:00:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2021-02-23 22:00:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2021-02-23 22:00:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2021-02-23 22:00:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 22:00:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-02-23 22:00:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2021-02-23 22:00:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 22:00:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 22:00:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 22:00:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 22:00:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2021-02-23 22:00:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 22:00:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2021-02-23 22:00:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2021-02-23 22:00:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 22:00:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2021-02-23 22:00:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2021-02-23 22:00:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2021-02-23 22:00:11,646 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-02-23 22:00:11,647 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-02-23 22:00:11,647 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2021-02-23 22:00:11,647 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-02-23 22:00:11,647 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-02-23 22:00:11,647 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2021-02-23 22:00:11,647 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2021-02-23 22:00:11,647 INFO L130 BoogieDeclarations]: Found specification of procedure test [2021-02-23 22:00:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2021-02-23 22:00:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 22:00:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-02-23 22:00:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-02-23 22:00:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-02-23 22:00:11,648 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2021-02-23 22:00:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2021-02-23 22:00:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2021-02-23 22:00:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2021-02-23 22:00:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2021-02-23 22:00:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2021-02-23 22:00:11,649 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-02-23 22:00:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2021-02-23 22:00:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2021-02-23 22:00:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2021-02-23 22:00:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-02-23 22:00:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2021-02-23 22:00:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-02-23 22:00:11,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 22:00:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 22:00:11,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 22:00:12,927 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 22:00:12,928 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-02-23 22:00:12,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:00:12 BoogieIcfgContainer [2021-02-23 22:00:12,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 22:00:12,936 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 22:00:12,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 22:00:12,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 22:00:12,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 10:00:10" (1/3) ... [2021-02-23 22:00:12,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a15825c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:00:12, skipping insertion in model container [2021-02-23 22:00:12,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 10:00:11" (2/3) ... [2021-02-23 22:00:12,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a15825c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 10:00:12, skipping insertion in model container [2021-02-23 22:00:12,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 10:00:12" (3/3) ... [2021-02-23 22:00:12,945 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2021-02-23 22:00:12,957 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 22:00:12,963 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 22:00:12,982 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 22:00:13,006 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 22:00:13,006 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 22:00:13,006 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 22:00:13,007 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 22:00:13,007 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 22:00:13,007 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 22:00:13,007 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 22:00:13,007 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 22:00:13,030 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2021-02-23 22:00:13,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-02-23 22:00:13,051 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:00:13,052 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] [2021-02-23 22:00:13,052 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:00:13,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:00:13,059 INFO L82 PathProgramCache]: Analyzing trace with hash -845332211, now seen corresponding path program 1 times [2021-02-23 22:00:13,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:00:13,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [660070947] [2021-02-23 22:00:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:00:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:13,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:13,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:13,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:13,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:13,905 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:00:13,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:00:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:14,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:14,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:14,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:00:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:14,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:14,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:14,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:00:14,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:14,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:14,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:14,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:00:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:14,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:14,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:14,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:00:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:14,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:14,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:14,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-02-23 22:00:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:14,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:14,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:14,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-02-23 22:00:14,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:14,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:14,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:14,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-02-23 22:00:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:14,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:14,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:14,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:00:14,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [660070947] [2021-02-23 22:00:14,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:00:14,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 22:00:14,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499885411] [2021-02-23 22:00:14,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 22:00:14,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:00:14,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 22:00:14,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 22:00:14,135 INFO L87 Difference]: Start difference. First operand 308 states. Second operand 3 states. [2021-02-23 22:00:15,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:00:15,704 INFO L93 Difference]: Finished difference Result 464 states and 552 transitions. [2021-02-23 22:00:15,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 22:00:15,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2021-02-23 22:00:15,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:00:15,722 INFO L225 Difference]: With dead ends: 464 [2021-02-23 22:00:15,723 INFO L226 Difference]: Without dead ends: 292 [2021-02-23 22:00:15,728 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 [2021-02-23 22:00:15,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-02-23 22:00:15,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 250. [2021-02-23 22:00:15,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2021-02-23 22:00:15,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 270 transitions. [2021-02-23 22:00:15,908 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 270 transitions. Word has length 158 [2021-02-23 22:00:15,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:00:15,909 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 270 transitions. [2021-02-23 22:00:15,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 22:00:15,909 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 270 transitions. [2021-02-23 22:00:15,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-02-23 22:00:15,914 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:00:15,914 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] [2021-02-23 22:00:15,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 22:00:15,914 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:00:15,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:00:15,915 INFO L82 PathProgramCache]: Analyzing trace with hash -284761496, now seen corresponding path program 1 times [2021-02-23 22:00:15,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:00:15,916 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [90180244] [2021-02-23 22:00:15,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:00:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:16,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:16,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:16,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:16,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:16,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:16,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:16,373 WARN L202 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:00:16,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:00:16,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:16,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:16,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:16,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:00:16,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:16,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:16,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:16,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:00:16,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:16,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:16,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:16,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:00:16,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:16,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:16,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:16,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:00:16,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:16,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:16,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:16,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-02-23 22:00:16,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:16,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:16,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:16,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 22:00:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:16,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:16,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:16,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 22:00:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:16,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:16,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:16,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:00:16,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [90180244] [2021-02-23 22:00:16,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:00:16,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 22:00:16,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253984219] [2021-02-23 22:00:16,507 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 22:00:16,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:00:16,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 22:00:16,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 22:00:16,508 INFO L87 Difference]: Start difference. First operand 250 states and 270 transitions. Second operand 4 states. [2021-02-23 22:00:17,317 WARN L202 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:00:18,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:00:18,340 INFO L93 Difference]: Finished difference Result 370 states and 414 transitions. [2021-02-23 22:00:18,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 22:00:18,340 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 159 [2021-02-23 22:00:18,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:00:18,345 INFO L225 Difference]: With dead ends: 370 [2021-02-23 22:00:18,345 INFO L226 Difference]: Without dead ends: 275 [2021-02-23 22:00:18,347 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 [2021-02-23 22:00:18,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-02-23 22:00:18,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 240. [2021-02-23 22:00:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2021-02-23 22:00:18,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 257 transitions. [2021-02-23 22:00:18,485 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 257 transitions. Word has length 159 [2021-02-23 22:00:18,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:00:18,486 INFO L480 AbstractCegarLoop]: Abstraction has 240 states and 257 transitions. [2021-02-23 22:00:18,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 22:00:18,486 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 257 transitions. [2021-02-23 22:00:18,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-02-23 22:00:18,489 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:00:18,489 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] [2021-02-23 22:00:18,489 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 22:00:18,490 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:00:18,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:00:18,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1998728577, now seen corresponding path program 1 times [2021-02-23 22:00:18,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:00:18,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1770527529] [2021-02-23 22:00:18,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:00:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:18,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:18,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:18,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:18,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:18,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:18,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:18,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:18,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:18,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:18,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 22:00:18,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:18,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:18,922 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:00:18,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:00:18,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:18,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:18,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:18,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:00:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:18,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:18,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:18,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:00:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:18,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:18,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:18,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:00:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:18,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:18,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:18,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:18,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:00:19,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:19,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 22:00:19,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:00:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:19,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:19,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:19,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-02-23 22:00:19,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:19,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:19,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:19,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 22:00:19,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:19,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:19,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:19,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 22:00:19,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:19,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:19,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:19,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 22:00:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:19,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:19,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:19,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:00:19,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1770527529] [2021-02-23 22:00:19,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:00:19,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 22:00:19,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007707971] [2021-02-23 22:00:19,134 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 22:00:19,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:00:19,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 22:00:19,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 22:00:19,136 INFO L87 Difference]: Start difference. First operand 240 states and 257 transitions. Second operand 10 states. [2021-02-23 22:00:19,789 WARN L202 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:00:20,257 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2021-02-23 22:00:20,698 WARN L202 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2021-02-23 22:00:21,087 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:00:21,437 WARN L202 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:00:21,806 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:00:22,939 WARN L202 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2021-02-23 22:00:25,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:00:25,528 INFO L93 Difference]: Finished difference Result 652 states and 757 transitions. [2021-02-23 22:00:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 22:00:25,532 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2021-02-23 22:00:25,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:00:25,543 INFO L225 Difference]: With dead ends: 652 [2021-02-23 22:00:25,543 INFO L226 Difference]: Without dead ends: 527 [2021-02-23 22:00:25,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-02-23 22:00:25,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2021-02-23 22:00:25,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 436. [2021-02-23 22:00:25,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 436 states. [2021-02-23 22:00:25,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 485 transitions. [2021-02-23 22:00:25,769 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 485 transitions. Word has length 172 [2021-02-23 22:00:25,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:00:25,770 INFO L480 AbstractCegarLoop]: Abstraction has 436 states and 485 transitions. [2021-02-23 22:00:25,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 22:00:25,770 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 485 transitions. [2021-02-23 22:00:25,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-02-23 22:00:25,774 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:00:25,774 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] [2021-02-23 22:00:25,774 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 22:00:25,775 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:00:25,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:00:25,775 INFO L82 PathProgramCache]: Analyzing trace with hash 441005700, now seen corresponding path program 1 times [2021-02-23 22:00:25,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:00:25,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282502630] [2021-02-23 22:00:25,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:00:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:25,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:25,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:25,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:25,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:25,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:25,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:25,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:25,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:25,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:25,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:25,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:25,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:25,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:25,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:25,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:25,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:26,342 WARN L202 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:00:26,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:00:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:26,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:26,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:26,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:26,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 22:00:26,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:00:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:26,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:26,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:26,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:00:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:26,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:26,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:26,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:00:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:26,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:26,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:26,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:00:26,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:26,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:26,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:26,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 22:00:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:26,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:26,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:26,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-02-23 22:00:26,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:26,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:26,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:26,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-02-23 22:00:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:26,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:26,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:26,496 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:26,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:26,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:26,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:26,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-23 22:00:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:26,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:26,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:26,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:00:26,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282502630] [2021-02-23 22:00:26,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:00:26,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 22:00:26,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775586645] [2021-02-23 22:00:26,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 22:00:26,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:00:26,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 22:00:26,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2021-02-23 22:00:26,587 INFO L87 Difference]: Start difference. First operand 436 states and 485 transitions. Second operand 9 states. [2021-02-23 22:00:27,247 WARN L202 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:00:29,293 WARN L202 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:00:29,672 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:00:30,119 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:00:30,563 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:00:30,974 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2021-02-23 22:00:31,413 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:00:31,804 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2021-02-23 22:00:32,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:00:32,734 INFO L93 Difference]: Finished difference Result 1156 states and 1386 transitions. [2021-02-23 22:00:32,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 22:00:32,735 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 177 [2021-02-23 22:00:32,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:00:32,743 INFO L225 Difference]: With dead ends: 1156 [2021-02-23 22:00:32,743 INFO L226 Difference]: Without dead ends: 835 [2021-02-23 22:00:32,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 22:00:32,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2021-02-23 22:00:33,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 736. [2021-02-23 22:00:33,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 736 states. [2021-02-23 22:00:33,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 842 transitions. [2021-02-23 22:00:33,110 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 842 transitions. Word has length 177 [2021-02-23 22:00:33,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:00:33,111 INFO L480 AbstractCegarLoop]: Abstraction has 736 states and 842 transitions. [2021-02-23 22:00:33,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 22:00:33,111 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 842 transitions. [2021-02-23 22:00:33,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 22:00:33,115 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:00:33,116 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] [2021-02-23 22:00:33,116 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 22:00:33,116 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:00:33,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:00:33,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1949426795, now seen corresponding path program 1 times [2021-02-23 22:00:33,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:00:33,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690148463] [2021-02-23 22:00:33,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:00:33,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:33,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:33,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:33,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:33,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:33,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:33,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:33,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:33,478 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2021-02-23 22:00:33,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 22:00:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:33,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:33,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:33,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 22:00:33,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:33,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:33,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-02-23 22:00:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:33,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:33,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-02-23 22:00:33,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:33,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:33,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2021-02-23 22:00:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:33,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:33,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2021-02-23 22:00:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:33,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 22:00:33,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-02-23 22:00:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:33,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:33,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-02-23 22:00:33,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:33,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:33,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-02-23 22:00:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:33,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:33,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-02-23 22:00:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 22:00:33,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 22:00:33,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 22:00:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 22:00:33,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690148463] [2021-02-23 22:00:33,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 22:00:33,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 22:00:33,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331084518] [2021-02-23 22:00:33,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 22:00:33,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 22:00:33,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 22:00:33,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 22:00:33,622 INFO L87 Difference]: Start difference. First operand 736 states and 842 transitions. Second operand 6 states. [2021-02-23 22:00:34,268 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2021-02-23 22:00:35,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 22:00:35,559 INFO L93 Difference]: Finished difference Result 1253 states and 1494 transitions. [2021-02-23 22:00:35,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 22:00:35,562 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 182 [2021-02-23 22:00:35,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 22:00:35,566 INFO L225 Difference]: With dead ends: 1253 [2021-02-23 22:00:35,567 INFO L226 Difference]: Without dead ends: 632 [2021-02-23 22:00:35,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-02-23 22:00:35,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2021-02-23 22:00:35,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 555. [2021-02-23 22:00:35,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2021-02-23 22:00:35,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 606 transitions. [2021-02-23 22:00:35,795 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 606 transitions. Word has length 182 [2021-02-23 22:00:35,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 22:00:35,795 INFO L480 AbstractCegarLoop]: Abstraction has 555 states and 606 transitions. [2021-02-23 22:00:35,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 22:00:35,796 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 606 transitions. [2021-02-23 22:00:35,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 22:00:35,799 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 22:00:35,799 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] [2021-02-23 22:00:35,800 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 22:00:35,800 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 22:00:35,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 22:00:35,800 INFO L82 PathProgramCache]: Analyzing trace with hash -46471581, now seen corresponding path program 1 times [2021-02-23 22:00:35,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 22:00:35,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349167369] [2021-02-23 22:00:35,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 22:00:35,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:00:35,890 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:00:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 22:00:35,976 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 22:00:36,214 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-23 22:00:36,214 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 22:00:36,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 22:00:36,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 10:00:36 BoogieIcfgContainer [2021-02-23 22:00:36,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 22:00:36,464 INFO L168 Benchmark]: Toolchain (without parser) took 25770.46 ms. Allocated memory was 156.2 MB in the beginning and 595.6 MB in the end (delta: 439.4 MB). Free memory was 132.3 MB in the beginning and 265.1 MB in the end (delta: -132.8 MB). Peak memory consumption was 307.3 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:36,465 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 156.2 MB. Free memory is still 129.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 22:00:36,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 700.11 ms. Allocated memory is still 156.2 MB. Free memory was 131.2 MB in the beginning and 110.4 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:36,466 INFO L168 Benchmark]: Boogie Preprocessor took 108.95 ms. Allocated memory is still 156.2 MB. Free memory was 110.4 MB in the beginning and 106.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:36,466 INFO L168 Benchmark]: RCFGBuilder took 1410.64 ms. Allocated memory was 156.2 MB in the beginning and 196.1 MB in the end (delta: 39.8 MB). Free memory was 106.5 MB in the beginning and 167.0 MB in the end (delta: -60.5 MB). Peak memory consumption was 58.2 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:36,467 INFO L168 Benchmark]: TraceAbstraction took 23526.67 ms. Allocated memory was 196.1 MB in the beginning and 595.6 MB in the end (delta: 399.5 MB). Free memory was 166.5 MB in the beginning and 265.1 MB in the end (delta: -98.6 MB). Peak memory consumption was 300.4 MB. Max. memory is 8.0 GB. [2021-02-23 22:00:36,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 156.2 MB. Free memory is still 129.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 700.11 ms. Allocated memory is still 156.2 MB. Free memory was 131.2 MB in the beginning and 110.4 MB in the end (delta: 20.7 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 108.95 ms. Allocated memory is still 156.2 MB. Free memory was 110.4 MB in the beginning and 106.5 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1410.64 ms. Allocated memory was 156.2 MB in the beginning and 196.1 MB in the end (delta: 39.8 MB). Free memory was 106.5 MB in the beginning and 167.0 MB in the end (delta: -60.5 MB). Peak memory consumption was 58.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23526.67 ms. Allocated memory was 196.1 MB in the beginning and 595.6 MB in the end (delta: 399.5 MB). Free memory was 166.5 MB in the beginning and 265.1 MB in the end (delta: -98.6 MB). Peak memory consumption was 300.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 929]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L249] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=179, head={0:0}, methaneLevelCritical=149, pumpRunning=139, systemActive=138, waterLevel=142] [L446] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=139, systemActive=138, waterLevel=142] [L592] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=0, systemActive=138, waterLevel=142] [L593] int systemActive = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=142] [L836] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=179, \old(head)=182, \old(head)=166, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=149, pumpRunning=0, systemActive=1, waterLevel=1] [L837] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=179, \old(head)=166, \old(head)=182, \old(methaneLevelCritical)=149, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L529] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L71] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L74] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L75] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L531] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L531] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L533] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L535] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L536] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L518] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L768] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L769] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L770] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L771] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L772] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L775] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L777] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L779] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L785] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L787] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L789] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L854] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L855] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L789] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L795] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L797] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L805] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L807] COND FALSE !(\read(tmp___2)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=0, waterLevel=2] [L813] tmp___1 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L815] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L817] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L747] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L817] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L824] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L599] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L606] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L614] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L552] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L553] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L554] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L558] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L875] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L878] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L879] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L558] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L558] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L560] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L564] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L907] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L910] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L911] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L564] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L564] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L566] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L568] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L680] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L683] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L684] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L568] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L568] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L570] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L574] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L929] reach_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 17.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1163 SDtfs, 1783 SDslu, 1593 SDs, 0 SdLazy, 3181 SolverSat, 594 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=736occurred 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: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 344 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1030 NumberOfCodeBlocks, 1030 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 843 ConstructedInterpolants, 0 QuantifiedInterpolants, 361029 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...