/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:49:00,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:49:00,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:49:00,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:49:00,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:49:00,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:49:00,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:49:00,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:49:00,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:49:00,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:49:00,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:49:00,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:49:00,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:49:00,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:49:00,826 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:49:00,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:49:00,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:49:00,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:49:00,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:49:00,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:49:00,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:49:00,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:49:00,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:49:00,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:49:00,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:49:00,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:49:00,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:49:00,854 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:49:00,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:49:00,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:49:00,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:49:00,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:49:00,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:49:00,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:49:00,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:49:00,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:49:00,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:49:00,860 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:49:00,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:49:00,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:49:00,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:49:00,864 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 20:49:00,881 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:49:00,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:49:00,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:49:00,884 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:49:00,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:49:00,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:49:00,885 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:49:00,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:49:00,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:49:00,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:49:00,886 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:49:00,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:49:00,887 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:49:00,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:49:00,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:49:00,888 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:49:00,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:49:00,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:49:00,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:49:00,889 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:49:00,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:49:00,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:49:00,889 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-09-04 20:49:01,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:49:01,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:49:01,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:49:01,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:49:01,348 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:49:01,349 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2020-09-04 20:49:01,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fdfd7d65f/c2f85006377241dab5c75fa3d651163e/FLAG1177e6528 [2020-09-04 20:49:02,042 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:49:02,043 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product22.cil.c [2020-09-04 20:49:02,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fdfd7d65f/c2f85006377241dab5c75fa3d651163e/FLAG1177e6528 [2020-09-04 20:49:02,301 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fdfd7d65f/c2f85006377241dab5c75fa3d651163e [2020-09-04 20:49:02,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:49:02,315 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:49:02,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:49:02,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:49:02,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:49:02,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:49:02" (1/1) ... [2020-09-04 20:49:02,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:02, skipping insertion in model container [2020-09-04 20:49:02,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:49:02" (1/1) ... [2020-09-04 20:49:02,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:49:02,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:49:02,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:49:02,818 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:49:03,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:49:03,109 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:49:03,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:03 WrapperNode [2020-09-04 20:49:03,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:49:03,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:49:03,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:49:03,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:49:03,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:03" (1/1) ... [2020-09-04 20:49:03,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:03" (1/1) ... [2020-09-04 20:49:03,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:03" (1/1) ... [2020-09-04 20:49:03,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:03" (1/1) ... [2020-09-04 20:49:03,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:03" (1/1) ... [2020-09-04 20:49:03,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:03" (1/1) ... [2020-09-04 20:49:03,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:03" (1/1) ... [2020-09-04 20:49:03,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:49:03,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:49:03,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:49:03,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:49:03,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:49:03,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:49:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:49:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:49:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:49:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:49:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:49:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:49:03,281 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:49:03,282 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:49:03,282 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-04 20:49:03,282 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:49:03,288 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:49:03,288 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:49:03,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:49:03,289 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:49:03,289 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:49:03,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:49:03,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:49:03,290 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:49:03,291 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:49:03,291 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:49:03,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:49:03,294 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-04 20:49:03,294 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:49:03,294 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:49:03,295 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:49:03,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:49:03,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:49:03,295 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:49:03,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-04 20:49:03,295 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 20:49:03,296 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:49:03,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:49:03,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:49:03,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:49:03,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:49:03,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:49:03,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:49:03,297 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:49:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:49:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:49:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:49:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:49:03,297 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:49:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:49:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:49:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:49:03,298 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:49:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-04 20:49:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:49:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:49:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:49:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:49:03,299 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:49:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:49:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:49:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:49:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:49:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:49:03,300 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:49:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:49:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:49:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:49:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:49:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:49:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:49:03,301 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 20:49:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:49:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:49:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:49:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-04 20:49:03,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-04 20:49:03,303 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:49:03,303 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:49:03,303 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:49:03,303 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:49:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:49:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:49:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:49:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:49:03,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:49:03,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:49:03,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:49:03,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:49:03,305 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:49:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:49:03,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:49:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:49:03,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:49:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:49:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:49:03,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:49:04,406 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:49:04,406 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:49:04,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:49:04 BoogieIcfgContainer [2020-09-04 20:49:04,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:49:04,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:49:04,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:49:04,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:49:04,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:49:02" (1/3) ... [2020-09-04 20:49:04,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7344df3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:49:04, skipping insertion in model container [2020-09-04 20:49:04,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:49:03" (2/3) ... [2020-09-04 20:49:04,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7344df3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:49:04, skipping insertion in model container [2020-09-04 20:49:04,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:49:04" (3/3) ... [2020-09-04 20:49:04,422 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product22.cil.c [2020-09-04 20:49:04,433 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:49:04,444 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:49:04,466 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:49:04,490 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:49:04,490 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:49:04,490 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:49:04,490 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:49:04,490 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:49:04,491 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:49:04,491 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:49:04,491 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:49:04,512 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states. [2020-09-04 20:49:04,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 20:49:04,537 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:04,538 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] [2020-09-04 20:49:04,539 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:04,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:04,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1572596205, now seen corresponding path program 1 times [2020-09-04 20:49:04,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:04,559 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050623371] [2020-09-04 20:49:04,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:05,265 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:05,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:05,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:05,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:05,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:05,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:05,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:05,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:49:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:05,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:49:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:05,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:49:05,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:05,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:49:05,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050623371] [2020-09-04 20:49:05,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:05,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:49:05,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490337988] [2020-09-04 20:49:05,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:49:05,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:05,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:49:05,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:49:05,491 INFO L87 Difference]: Start difference. First operand 310 states. Second operand 3 states. [2020-09-04 20:49:06,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:06,947 INFO L93 Difference]: Finished difference Result 486 states and 580 transitions. [2020-09-04 20:49:06,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:49:06,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 20:49:06,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:06,983 INFO L225 Difference]: With dead ends: 486 [2020-09-04 20:49:06,983 INFO L226 Difference]: Without dead ends: 301 [2020-09-04 20:49:06,994 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:49:07,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-04 20:49:07,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 259. [2020-09-04 20:49:07,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 259 states. [2020-09-04 20:49:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 282 transitions. [2020-09-04 20:49:07,195 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 282 transitions. Word has length 153 [2020-09-04 20:49:07,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:07,197 INFO L479 AbstractCegarLoop]: Abstraction has 259 states and 282 transitions. [2020-09-04 20:49:07,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:49:07,198 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 282 transitions. [2020-09-04 20:49:07,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 20:49:07,209 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:07,210 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] [2020-09-04 20:49:07,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:49:07,211 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:07,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:07,211 INFO L82 PathProgramCache]: Analyzing trace with hash -197104449, now seen corresponding path program 1 times [2020-09-04 20:49:07,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:07,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844910063] [2020-09-04 20:49:07,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,644 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:07,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:07,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:07,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 20:49:07,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:49:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 20:49:07,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:07,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:49:07,752 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844910063] [2020-09-04 20:49:07,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:07,752 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:49:07,752 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132726087] [2020-09-04 20:49:07,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:49:07,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:07,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:49:07,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:49:07,756 INFO L87 Difference]: Start difference. First operand 259 states and 282 transitions. Second operand 4 states. [2020-09-04 20:49:08,342 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:49:09,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:09,380 INFO L93 Difference]: Finished difference Result 399 states and 451 transitions. [2020-09-04 20:49:09,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:49:09,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 20:49:09,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:09,384 INFO L225 Difference]: With dead ends: 399 [2020-09-04 20:49:09,384 INFO L226 Difference]: Without dead ends: 284 [2020-09-04 20:49:09,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:49:09,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-09-04 20:49:09,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 249. [2020-09-04 20:49:09,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-04 20:49:09,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 269 transitions. [2020-09-04 20:49:09,460 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 269 transitions. Word has length 154 [2020-09-04 20:49:09,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:09,461 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 269 transitions. [2020-09-04 20:49:09,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:49:09,461 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 269 transitions. [2020-09-04 20:49:09,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-04 20:49:09,463 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:09,463 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] [2020-09-04 20:49:09,464 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:49:09,464 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:09,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:09,464 INFO L82 PathProgramCache]: Analyzing trace with hash 2051029771, now seen corresponding path program 1 times [2020-09-04 20:49:09,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:09,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1555809061] [2020-09-04 20:49:09,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,846 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:09,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:09,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:49:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 20:49:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-04 20:49:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:09,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-04 20:49:09,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:10,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:49:10,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1555809061] [2020-09-04 20:49:10,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:10,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:49:10,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656529194] [2020-09-04 20:49:10,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:49:10,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:10,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:49:10,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:49:10,026 INFO L87 Difference]: Start difference. First operand 249 states and 269 transitions. Second operand 10 states. [2020-09-04 20:49:10,656 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:11,118 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:49:11,495 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:49:11,725 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:11,982 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:12,261 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:13,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:13,997 INFO L93 Difference]: Finished difference Result 445 states and 513 transitions. [2020-09-04 20:49:13,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 20:49:13,999 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-09-04 20:49:14,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:14,003 INFO L225 Difference]: With dead ends: 445 [2020-09-04 20:49:14,004 INFO L226 Difference]: Without dead ends: 306 [2020-09-04 20:49:14,005 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-09-04 20:49:14,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-09-04 20:49:14,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 249. [2020-09-04 20:49:14,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-04 20:49:14,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 268 transitions. [2020-09-04 20:49:14,098 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 268 transitions. Word has length 167 [2020-09-04 20:49:14,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:14,099 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 268 transitions. [2020-09-04 20:49:14,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:49:14,099 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 268 transitions. [2020-09-04 20:49:14,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-04 20:49:14,101 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:14,102 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] [2020-09-04 20:49:14,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:49:14,102 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:14,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:14,102 INFO L82 PathProgramCache]: Analyzing trace with hash -292228132, now seen corresponding path program 1 times [2020-09-04 20:49:14,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:14,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1994873421] [2020-09-04 20:49:14,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,483 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:14,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:14,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 20:49:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:49:14,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:49:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:49:14,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-04 20:49:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-04 20:49:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-04 20:49:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:14,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:49:14,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1994873421] [2020-09-04 20:49:14,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:14,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:49:14,684 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788430197] [2020-09-04 20:49:14,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:49:14,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:14,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:49:14,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:49:14,685 INFO L87 Difference]: Start difference. First operand 249 states and 268 transitions. Second operand 10 states. [2020-09-04 20:49:15,289 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:17,700 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:18,053 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:18,338 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:18,635 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:49:18,933 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:19,429 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:19,797 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:49:20,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:20,446 INFO L93 Difference]: Finished difference Result 689 states and 848 transitions. [2020-09-04 20:49:20,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-04 20:49:20,447 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 180 [2020-09-04 20:49:20,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:20,453 INFO L225 Difference]: With dead ends: 689 [2020-09-04 20:49:20,453 INFO L226 Difference]: Without dead ends: 550 [2020-09-04 20:49:20,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2020-09-04 20:49:20,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-09-04 20:49:20,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 382. [2020-09-04 20:49:20,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-09-04 20:49:20,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 424 transitions. [2020-09-04 20:49:20,586 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 424 transitions. Word has length 180 [2020-09-04 20:49:20,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:20,587 INFO L479 AbstractCegarLoop]: Abstraction has 382 states and 424 transitions. [2020-09-04 20:49:20,587 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:49:20,587 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 424 transitions. [2020-09-04 20:49:20,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-04 20:49:20,591 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:20,591 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:49:20,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:49:20,592 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:20,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:20,592 INFO L82 PathProgramCache]: Analyzing trace with hash 330228208, now seen corresponding path program 1 times [2020-09-04 20:49:20,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:20,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2043904649] [2020-09-04 20:49:20,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:20,983 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:49:20,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:49:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:49:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:49:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:49:21,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:49:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-04 20:49:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 20:49:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 20:49:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:49:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:49:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:49:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2020-09-04 20:49:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-09-04 20:49:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-09-04 20:49:21,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:49:21,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:49:21,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2043904649] [2020-09-04 20:49:21,181 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:49:21,181 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 20:49:21,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521449201] [2020-09-04 20:49:21,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 20:49:21,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:49:21,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 20:49:21,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 20:49:21,185 INFO L87 Difference]: Start difference. First operand 382 states and 424 transitions. Second operand 7 states. [2020-09-04 20:49:21,647 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:49:22,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:49:22,595 INFO L93 Difference]: Finished difference Result 614 states and 718 transitions. [2020-09-04 20:49:22,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 20:49:22,596 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-09-04 20:49:22,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:49:22,599 INFO L225 Difference]: With dead ends: 614 [2020-09-04 20:49:22,599 INFO L226 Difference]: Without dead ends: 342 [2020-09-04 20:49:22,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2020-09-04 20:49:22,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-09-04 20:49:22,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 276. [2020-09-04 20:49:22,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-09-04 20:49:22,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 291 transitions. [2020-09-04 20:49:22,678 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 291 transitions. Word has length 190 [2020-09-04 20:49:22,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:49:22,678 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 291 transitions. [2020-09-04 20:49:22,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 20:49:22,679 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 291 transitions. [2020-09-04 20:49:22,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-09-04 20:49:22,681 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:49:22,681 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:49:22,682 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:49:22,682 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:49:22,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:49:22,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1645650045, now seen corresponding path program 1 times [2020-09-04 20:49:22,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:49:22,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160159107] [2020-09-04 20:49:22,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:49:22,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:49:22,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:49:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:49:22,824 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:49:23,061 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:49:23,061 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:49:23,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 20:49:23,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:49:23 BoogieIcfgContainer [2020-09-04 20:49:23,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:49:23,275 INFO L168 Benchmark]: Toolchain (without parser) took 20960.17 ms. Allocated memory was 146.8 MB in the beginning and 582.5 MB in the end (delta: 435.7 MB). Free memory was 101.8 MB in the beginning and 326.6 MB in the end (delta: -224.8 MB). Peak memory consumption was 210.9 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:23,280 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 20:49:23,282 INFO L168 Benchmark]: CACSL2BoogieTranslator took 794.34 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 173.9 MB in the end (delta: -72.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:23,283 INFO L168 Benchmark]: Boogie Preprocessor took 92.51 ms. Allocated memory is still 204.5 MB. Free memory was 173.9 MB in the beginning and 169.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:23,283 INFO L168 Benchmark]: RCFGBuilder took 1209.80 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 169.9 MB in the beginning and 177.6 MB in the end (delta: -7.7 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:23,284 INFO L168 Benchmark]: TraceAbstraction took 18857.95 ms. Allocated memory was 237.0 MB in the beginning and 582.5 MB in the end (delta: 345.5 MB). Free memory was 177.6 MB in the beginning and 326.6 MB in the end (delta: -149.0 MB). Peak memory consumption was 196.5 MB. Max. memory is 7.1 GB. [2020-09-04 20:49:23,296 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 794.34 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 173.9 MB in the end (delta: -72.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.51 ms. Allocated memory is still 204.5 MB. Free memory was 173.9 MB in the beginning and 169.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1209.80 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 169.9 MB in the beginning and 177.6 MB in the end (delta: -7.7 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18857.95 ms. Allocated memory was 237.0 MB in the beginning and 582.5 MB in the end (delta: 345.5 MB). Free memory was 177.6 MB in the beginning and 326.6 MB in the end (delta: -149.0 MB). Peak memory consumption was 196.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 140]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=168, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=141, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=138, cleanupTimeShifts=168, head={176:161}, methaneLevelCritical=141, pumpRunning=134, systemActive=133, waterLevel=1] [L48] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=168, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=141, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=138, cleanupTimeShifts=168, head={176:161}, methaneLevelCritical=0, pumpRunning=134, systemActive=133, waterLevel=1] [L145] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=168, \old(head)=161, \old(head)=176, \old(methaneLevelCritical)=141, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=138, cleanupTimeShifts=4, head={176:161}, methaneLevelCritical=0, pumpRunning=134, systemActive=133, waterLevel=1] [L286] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=168, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=141, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=138, cleanupTimeShifts=4, head={176:161}, methaneLevelCritical=0, pumpRunning=0, systemActive=133, waterLevel=1] [L287] int systemActive = 1; VAL [\old(cleanupTimeShifts)=168, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=141, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=138, cleanupTimeShifts=4, head={176:161}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=168, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=141, \old(pumpRunning)=134, \old(systemActive)=133, \old(waterLevel)=138, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L224] 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] [L225] 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] [L229] 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] [L230] 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] [L231] 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] [L273] 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] [L276] 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] [L277] 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] [L231] 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] [L231] 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] [L233] 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] [L235] 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] [L236] 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] [L215] 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] [L474] 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] [L475] 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] [L476] 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] [L477] 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] [L478] 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] [L481] 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] [L483] 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] [L485] 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] [L491] 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] [L493] 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] [L495] 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] [L65] 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] [L66] 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] [L495] 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] [L501] 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] [L503] 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] [L511] tmp___2 = __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___2=1, waterLevel=2] [L513] COND TRUE \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=1, waterLevel=2] [L515] CALL startSystem() 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] [L468] systemActive = 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] [L515] RET startSystem() 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=1, waterLevel=2] [L528] 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=1, waterLevel=2] [L294] 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=1, waterLevel=2] [L301] COND TRUE \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=1, waterLevel=2] [L303] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L349] 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=1, waterLevel=2] [L352] 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=1, waterLevel=2] [L367] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L323] 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=1, waterLevel=2] [L326] 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=1, waterLevel=2] [L341] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L367] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L303] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L309] 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=1, waterLevel=2] [L907] 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=1, waterLevel=2] [L908] 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=1, waterLevel=2] [L909] 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=1, waterLevel=2] [L913] 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=1, waterLevel=2] [L86] 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=1, waterLevel=2] [L89] 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=1, waterLevel=2] [L90] 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=1, waterLevel=2] [L913] 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=1, waterLevel=2] [L913] 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=1, tmp=0, waterLevel=2] [L915] 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=1, tmp=0, waterLevel=2] [L919] 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=1, waterLevel=2] [L118] 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=1, waterLevel=2] [L121] 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=1, waterLevel=2] [L122] 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=1, waterLevel=2] [L919] 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=1, tmp=0, waterLevel=2] [L919] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L921] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L923] 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=1, waterLevel=2] [L401] 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=1, waterLevel=2] [L404] 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=1, waterLevel=2] [L405] 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=1, waterLevel=2] [L923] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L923] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L925] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L929] 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=1, waterLevel=2] [L140] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 625 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1133 SDtfs, 2086 SDslu, 1414 SDs, 0 SdLazy, 3033 SolverSat, 660 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=382occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 368 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1029 NumberOfCodeBlocks, 1029 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 839 ConstructedInterpolants, 0 QuantifiedInterpolants, 343444 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...