/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_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:47:10,084 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:47:10,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:47:10,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:47:10,130 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:47:10,138 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:47:10,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:47:10,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:47:10,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:47:10,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:47:10,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:47:10,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:47:10,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:47:10,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:47:10,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:47:10,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:47:10,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:47:10,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:47:10,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:47:10,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:47:10,171 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:47:10,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:47:10,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:47:10,174 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:47:10,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:47:10,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:47:10,185 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:47:10,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:47:10,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:47:10,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:47:10,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:47:10,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:47:10,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:47:10,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:47:10,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:47:10,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:47:10,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:47:10,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:47:10,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:47:10,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:47:10,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:47:10,198 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 20:47:10,211 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:47:10,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:47:10,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:47:10,214 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:47:10,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:47:10,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:47:10,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:47:10,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:47:10,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:47:10,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:47:10,216 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:47:10,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:47:10,216 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:47:10,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:47:10,217 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:47:10,217 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:47:10,217 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:47:10,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:47:10,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:47:10,218 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:47:10,218 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:47:10,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:47:10,219 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 20:47:10,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:47:10,635 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:47:10,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:47:10,640 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:47:10,641 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:47:10,642 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-04 20:47:10,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b7baff7fa/d15c3a99957345139a07f692a7b46668/FLAG72a19db34 [2020-09-04 20:47:11,250 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:47:11,251 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-04 20:47:11,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b7baff7fa/d15c3a99957345139a07f692a7b46668/FLAG72a19db34 [2020-09-04 20:47:11,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b7baff7fa/d15c3a99957345139a07f692a7b46668 [2020-09-04 20:47:11,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:47:11,548 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:47:11,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:47:11,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:47:11,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:47:11,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:47:11" (1/1) ... [2020-09-04 20:47:11,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27030054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:11, skipping insertion in model container [2020-09-04 20:47:11,563 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:47:11" (1/1) ... [2020-09-04 20:47:11,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:47:11,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:47:12,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:47:12,059 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:47:12,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:47:12,296 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:47:12,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:12 WrapperNode [2020-09-04 20:47:12,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:47:12,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:47:12,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:47:12,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:47:12,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:12" (1/1) ... [2020-09-04 20:47:12,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:12" (1/1) ... [2020-09-04 20:47:12,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:12" (1/1) ... [2020-09-04 20:47:12,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:12" (1/1) ... [2020-09-04 20:47:12,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:12" (1/1) ... [2020-09-04 20:47:12,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:12" (1/1) ... [2020-09-04 20:47:12,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:12" (1/1) ... [2020-09-04 20:47:12,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:47:12,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:47:12,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:47:12,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:47:12,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:12" (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 20:47:12,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:47:12,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:47:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:47:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:47:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:47:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:47:12,505 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:47:12,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:47:12,506 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:47:12,506 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:47:12,506 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:47:12,507 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:47:12,507 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:47:12,507 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:47:12,508 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:47:12,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:47:12,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:47:12,509 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:47:12,509 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:47:12,510 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:47:12,510 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:47:12,510 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:47:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:47:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:47:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:47:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:47:12,513 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:47:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:47:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:47:12,514 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:47:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:47:12,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:47:12,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:47:12,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:47:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:47:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:47:12,516 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:47:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:47:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:47:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:47:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:47:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:47:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:47:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:47:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:47:12,517 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-04 20:47:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:47:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:47:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:47:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:47:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:47:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:47:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:47:12,518 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:47:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:47:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:47:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:47:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:47:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:47:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:47:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:47:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:47:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:47:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:47:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:47:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:47:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:47:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:47:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:47:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:47:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:47:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:47:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:47:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:47:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:47:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:47:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:47:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:47:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:47:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:47:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:47:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:47:13,621 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:47:13,622 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:47:13,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:47:13 BoogieIcfgContainer [2020-09-04 20:47:13,628 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:47:13,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:47:13,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:47:13,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:47:13,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:47:11" (1/3) ... [2020-09-04 20:47:13,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4ddaf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:47:13, skipping insertion in model container [2020-09-04 20:47:13,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:47:12" (2/3) ... [2020-09-04 20:47:13,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c4ddaf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:47:13, skipping insertion in model container [2020-09-04 20:47:13,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:47:13" (3/3) ... [2020-09-04 20:47:13,638 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-09-04 20:47:13,650 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:47:13,661 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:47:13,684 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:47:13,715 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:47:13,715 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:47:13,715 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:47:13,715 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:47:13,715 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:47:13,715 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:47:13,716 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:47:13,716 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:47:13,739 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-09-04 20:47:13,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 20:47:13,762 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:47:13,764 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 20:47:13,765 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:47:13,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:47:13,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times [2020-09-04 20:47:13,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:47:13,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099646407] [2020-09-04 20:47:13,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:47:14,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:14,586 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:47:14,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:47:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:14,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:47:14,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:14,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:47:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:14,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:47:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:14,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:47:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:14,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:47:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:14,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:47:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:14,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:47:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:14,774 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 20:47:14,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099646407] [2020-09-04 20:47:14,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:47:14,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:47:14,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546325577] [2020-09-04 20:47:14,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:47:14,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:47:14,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:47:14,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:47:14,812 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 3 states. [2020-09-04 20:47:16,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:47:16,009 INFO L93 Difference]: Finished difference Result 365 states and 438 transitions. [2020-09-04 20:47:16,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:47:16,011 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 20:47:16,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:47:16,030 INFO L225 Difference]: With dead ends: 365 [2020-09-04 20:47:16,030 INFO L226 Difference]: Without dead ends: 238 [2020-09-04 20:47:16,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:47:16,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-04 20:47:16,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201. [2020-09-04 20:47:16,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-09-04 20:47:16,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 215 transitions. [2020-09-04 20:47:16,183 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 215 transitions. Word has length 153 [2020-09-04 20:47:16,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:47:16,187 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 215 transitions. [2020-09-04 20:47:16,187 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:47:16,188 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 215 transitions. [2020-09-04 20:47:16,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-04 20:47:16,201 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:47:16,201 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 20:47:16,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:47:16,202 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:47:16,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:47:16,202 INFO L82 PathProgramCache]: Analyzing trace with hash 2008587575, now seen corresponding path program 1 times [2020-09-04 20:47:16,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:47:16,203 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [31512537] [2020-09-04 20:47:16,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:47:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:16,551 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:47:16,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:47:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:16,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:47:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:16,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:47:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:16,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:47:16,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:16,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:47:16,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:16,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-04 20:47:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:16,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:47:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:16,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-04 20:47:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:16,630 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 20:47:16,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [31512537] [2020-09-04 20:47:16,631 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:47:16,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:47:16,632 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626562874] [2020-09-04 20:47:16,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:47:16,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:47:16,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:47:16,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:47:16,635 INFO L87 Difference]: Start difference. First operand 201 states and 215 transitions. Second operand 4 states. [2020-09-04 20:47:17,313 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:47:17,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:47:17,910 INFO L93 Difference]: Finished difference Result 282 states and 313 transitions. [2020-09-04 20:47:17,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:47:17,911 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-04 20:47:17,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:47:17,915 INFO L225 Difference]: With dead ends: 282 [2020-09-04 20:47:17,916 INFO L226 Difference]: Without dead ends: 221 [2020-09-04 20:47:17,917 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 20:47:17,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-04 20:47:17,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-09-04 20:47:17,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-04 20:47:17,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 202 transitions. [2020-09-04 20:47:17,977 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 202 transitions. Word has length 154 [2020-09-04 20:47:17,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:47:17,978 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 202 transitions. [2020-09-04 20:47:17,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:47:17,978 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 202 transitions. [2020-09-04 20:47:17,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-04 20:47:17,980 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:47:17,980 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] [2020-09-04 20:47:17,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:47:17,981 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:47:17,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:47:17,981 INFO L82 PathProgramCache]: Analyzing trace with hash 1539733420, now seen corresponding path program 1 times [2020-09-04 20:47:17,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:47:17,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998524631] [2020-09-04 20:47:17,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:47:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:18,381 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:47:18,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:47:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:18,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:47:18,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:18,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:47:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:18,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:47:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:18,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:47:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:18,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:47:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:18,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-04 20:47:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:18,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-04 20:47:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:18,587 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 20:47:18,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998524631] [2020-09-04 20:47:18,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:47:18,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:47:18,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248291013] [2020-09-04 20:47:18,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:47:18,590 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:47:18,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:47:18,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:47:18,590 INFO L87 Difference]: Start difference. First operand 191 states and 202 transitions. Second operand 9 states. [2020-09-04 20:47:19,252 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:47:19,729 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:47:20,125 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:47:20,388 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:47:20,652 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:47:20,939 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:47:21,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:47:21,986 INFO L93 Difference]: Finished difference Result 302 states and 338 transitions. [2020-09-04 20:47:21,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 20:47:21,987 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-09-04 20:47:21,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:47:21,991 INFO L225 Difference]: With dead ends: 302 [2020-09-04 20:47:21,991 INFO L226 Difference]: Without dead ends: 221 [2020-09-04 20:47:21,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-09-04 20:47:21,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-04 20:47:22,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-09-04 20:47:22,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-04 20:47:22,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 201 transitions. [2020-09-04 20:47:22,040 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 201 transitions. Word has length 163 [2020-09-04 20:47:22,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:47:22,041 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 201 transitions. [2020-09-04 20:47:22,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:47:22,041 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 201 transitions. [2020-09-04 20:47:22,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-04 20:47:22,043 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:47:22,043 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] [2020-09-04 20:47:22,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:47:22,044 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:47:22,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:47:22,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1213081293, now seen corresponding path program 1 times [2020-09-04 20:47:22,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:47:22,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763518517] [2020-09-04 20:47:22,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:47:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:22,428 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:47:22,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:47:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:22,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:47:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:22,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:47:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:22,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:47:22,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:22,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:47:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:22,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-04 20:47:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:22,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-04 20:47:22,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:22,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-04 20:47:22,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:22,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-04 20:47:22,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:22,633 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 20:47:22,633 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763518517] [2020-09-04 20:47:22,634 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:47:22,634 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-04 20:47:22,634 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656625123] [2020-09-04 20:47:22,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-04 20:47:22,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:47:22,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-04 20:47:22,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-04 20:47:22,636 INFO L87 Difference]: Start difference. First operand 191 states and 201 transitions. Second operand 8 states. [2020-09-04 20:47:23,113 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:47:24,429 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:47:24,730 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:47:25,058 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:47:25,392 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:47:25,690 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:47:26,027 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:47:26,321 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:47:26,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:47:26,637 INFO L93 Difference]: Finished difference Result 368 states and 417 transitions. [2020-09-04 20:47:26,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 20:47:26,637 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-04 20:47:26,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:47:26,641 INFO L225 Difference]: With dead ends: 368 [2020-09-04 20:47:26,641 INFO L226 Difference]: Without dead ends: 287 [2020-09-04 20:47:26,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-04 20:47:26,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-04 20:47:26,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 262. [2020-09-04 20:47:26,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-04 20:47:26,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 284 transitions. [2020-09-04 20:47:26,719 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 284 transitions. Word has length 166 [2020-09-04 20:47:26,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:47:26,720 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 284 transitions. [2020-09-04 20:47:26,720 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-04 20:47:26,720 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 284 transitions. [2020-09-04 20:47:26,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-04 20:47:26,722 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:47:26,723 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] [2020-09-04 20:47:26,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:47:26,723 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:47:26,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:47:26,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1773237520, now seen corresponding path program 1 times [2020-09-04 20:47:26,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:47:26,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011545800] [2020-09-04 20:47:26,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:47:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:27,050 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:47:27,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:47:27,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:27,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:47:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:27,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:47:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:27,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:47:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:27,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:47:27,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:27,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-04 20:47:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:27,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:47:27,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:27,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-04 20:47:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:27,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-04 20:47:27,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:27,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-04 20:47:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:47:27,176 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 20:47:27,176 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2011545800] [2020-09-04 20:47:27,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:47:27,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 20:47:27,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242704272] [2020-09-04 20:47:27,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 20:47:27,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:47:27,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 20:47:27,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:47:27,179 INFO L87 Difference]: Start difference. First operand 262 states and 284 transitions. Second operand 5 states. [2020-09-04 20:47:27,733 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:47:28,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:47:28,316 INFO L93 Difference]: Finished difference Result 361 states and 402 transitions. [2020-09-04 20:47:28,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 20:47:28,317 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 171 [2020-09-04 20:47:28,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:47:28,319 INFO L225 Difference]: With dead ends: 361 [2020-09-04 20:47:28,320 INFO L226 Difference]: Without dead ends: 269 [2020-09-04 20:47:28,321 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-04 20:47:28,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2020-09-04 20:47:28,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 248. [2020-09-04 20:47:28,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 248 states. [2020-09-04 20:47:28,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 263 transitions. [2020-09-04 20:47:28,396 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 263 transitions. Word has length 171 [2020-09-04 20:47:28,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:47:28,397 INFO L479 AbstractCegarLoop]: Abstraction has 248 states and 263 transitions. [2020-09-04 20:47:28,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 20:47:28,397 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 263 transitions. [2020-09-04 20:47:28,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-04 20:47:28,399 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:47:28,399 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] [2020-09-04 20:47:28,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:47:28,400 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:47:28,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:47:28,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times [2020-09-04 20:47:28,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:47:28,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2087014942] [2020-09-04 20:47:28,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:47:28,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:47:28,492 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:47:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:47:28,572 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:47:28,760 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:47:28,760 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:47:28,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 20:47:28,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:47:28 BoogieIcfgContainer [2020-09-04 20:47:28,972 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:47:28,974 INFO L168 Benchmark]: Toolchain (without parser) took 17426.80 ms. Allocated memory was 138.4 MB in the beginning and 520.6 MB in the end (delta: 382.2 MB). Free memory was 102.1 MB in the beginning and 161.4 MB in the end (delta: -59.3 MB). Peak memory consumption was 322.9 MB. Max. memory is 7.1 GB. [2020-09-04 20:47:28,975 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 20:47:28,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.55 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 174.6 MB in the end (delta: -72.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2020-09-04 20:47:28,977 INFO L168 Benchmark]: Boogie Preprocessor took 105.94 ms. Allocated memory is still 203.4 MB. Free memory was 174.6 MB in the beginning and 170.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-04 20:47:28,978 INFO L168 Benchmark]: RCFGBuilder took 1224.50 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 170.4 MB in the beginning and 185.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. [2020-09-04 20:47:28,979 INFO L168 Benchmark]: TraceAbstraction took 15342.51 ms. Allocated memory was 235.4 MB in the beginning and 520.6 MB in the end (delta: 285.2 MB). Free memory was 185.7 MB in the beginning and 161.4 MB in the end (delta: 24.3 MB). Peak memory consumption was 309.5 MB. Max. memory is 7.1 GB. [2020-09-04 20:47:28,982 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.55 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.9 MB in the beginning and 174.6 MB in the end (delta: -72.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.94 ms. Allocated memory is still 203.4 MB. Free memory was 174.6 MB in the beginning and 170.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1224.50 ms. Allocated memory was 203.4 MB in the beginning and 235.4 MB in the end (delta: 32.0 MB). Free memory was 170.4 MB in the beginning and 185.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 88.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15342.51 ms. Allocated memory was 235.4 MB in the beginning and 520.6 MB in the end (delta: 285.2 MB). Free memory was 185.7 MB in the beginning and 161.4 MB in the end (delta: 24.3 MB). Peak memory consumption was 309.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=165, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=174, head={176:165}, methaneLevelCritical=146, pumpRunning=0, systemActive=135, waterLevel=141] [L49] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=165, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=174, head={176:165}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=141] [L307] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=165, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={176:165}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=141] [L403] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=165, \old(head)=176, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={176:165}, methaneLevelCritical=146, pumpRunning=0, systemActive=1, waterLevel=1] [L404] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=165, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={176:165}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L652] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=174, \old(head)=176, \old(head)=165, \old(methaneLevelCritical)=146, \old(pumpRunning)=136, \old(systemActive)=135, \old(waterLevel)=141, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L380] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L381] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L385] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L386] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L387] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L253] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L256] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L257] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L387] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L387] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L389] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L391] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L392] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L374] CALL test() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L160] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L161] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L162] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L163] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L164] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L167] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L169] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L171] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L177] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L179] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L181] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L421] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L422] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L181] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L187] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \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] [L189] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L197] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \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] [L199] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \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] [L212] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L56] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L63] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L65] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L71] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L265] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L266] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L267] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L271] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L442] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L445] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L446] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L271] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L271] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L273] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L277] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L474] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L477] retValue_acc = waterLevel VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L478] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L277] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L277] tmp___0 = getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L279] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L281] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L111] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L114] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L115] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L281] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L281] tmp___1 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \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] [L283] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L287] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L302] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 578 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 11.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 909 SDtfs, 958 SDslu, 1144 SDs, 0 SdLazy, 1888 SolverSat, 280 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=262occurred 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: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 143 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 978 NumberOfCodeBlocks, 978 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 802 ConstructedInterpolants, 0 QuantifiedInterpolants, 329460 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...