/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:34:12,609 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:34:12,611 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:34:12,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:34:12,623 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:34:12,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:34:12,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:34:12,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:34:12,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:34:12,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:34:12,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:34:12,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:34:12,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:34:12,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:34:12,633 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:34:12,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:34:12,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:34:12,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:34:12,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:34:12,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:34:12,641 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:34:12,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:34:12,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:34:12,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:34:12,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:34:12,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:34:12,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:34:12,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:34:12,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:34:12,648 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:34:12,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:34:12,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:34:12,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:34:12,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:34:12,652 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:34:12,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:34:12,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:34:12,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:34:12,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:34:12,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:34:12,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:34:12,655 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:34:12,664 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:34:12,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:34:12,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:34:12,666 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:34:12,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:34:12,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:34:12,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:34:12,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:34:12,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:34:12,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:34:12,667 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:34:12,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:34:12,667 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:34:12,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:34:12,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:34:12,668 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:34:12,668 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:34:12,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:34:12,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:34:12,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:34:12,669 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:34:12,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:34:12,669 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:34:12,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:34:12,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:34:12,952 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:34:12,953 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:34:12,954 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:34:12,954 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-07-07 12:34:13,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a47c6b36e/7a0ff95facf8424895452cd70fdfb424/FLAGe248b4361 [2020-07-07 12:34:13,482 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:34:13,483 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-07-07 12:34:13,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a47c6b36e/7a0ff95facf8424895452cd70fdfb424/FLAGe248b4361 [2020-07-07 12:34:13,810 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a47c6b36e/7a0ff95facf8424895452cd70fdfb424 [2020-07-07 12:34:13,820 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:34:13,822 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:34:13,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:34:13,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:34:13,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:34:13,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:34:13" (1/1) ... [2020-07-07 12:34:13,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@795371e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:13, skipping insertion in model container [2020-07-07 12:34:13,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:34:13" (1/1) ... [2020-07-07 12:34:13,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:34:13,912 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:34:14,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:34:14,385 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:34:14,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:34:14,502 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:34:14,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:14 WrapperNode [2020-07-07 12:34:14,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:34:14,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:34:14,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:34:14,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:34:14,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:14" (1/1) ... [2020-07-07 12:34:14,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:14" (1/1) ... [2020-07-07 12:34:14,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:14" (1/1) ... [2020-07-07 12:34:14,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:14" (1/1) ... [2020-07-07 12:34:14,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:14" (1/1) ... [2020-07-07 12:34:14,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:14" (1/1) ... [2020-07-07 12:34:14,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:14" (1/1) ... [2020-07-07 12:34:14,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:34:14,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:34:14,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:34:14,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:34:14,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:34:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:34:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:34:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:34:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:34:14,653 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:34:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:34:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:34:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:34:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:34:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:34:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:34:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:34:14,654 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:34:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:34:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:34:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:34:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:34:14,655 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:34:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:34:14,656 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:34:14,657 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:34:14,657 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:34:14,659 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:34:14,659 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-07 12:34:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:34:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:34:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:34:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:34:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:34:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:34:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:34:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:34:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:34:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:34:14,661 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:34:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:34:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:34:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:34:14,662 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:34:14,663 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:34:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:34:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:34:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:34:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:34:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:34:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:34:14,664 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:34:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:34:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:34:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:34:14,665 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:34:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:34:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:34:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:34:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:34:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:34:14,666 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:34:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:34:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:34:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:34:14,667 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:34:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:34:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:34:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:34:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:34:14,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:34:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:34:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:34:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:34:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:34:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:34:14,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:34:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:34:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:34:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:34:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:34:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:34:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:34:14,670 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:34:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:34:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:34:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:34:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:34:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:34:14,671 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:34:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:34:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:34:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-07 12:34:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:34:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:34:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:34:14,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:34:15,743 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:34:15,743 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:34:15,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:34:15 BoogieIcfgContainer [2020-07-07 12:34:15,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:34:15,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:34:15,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:34:15,756 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:34:15,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:34:13" (1/3) ... [2020-07-07 12:34:15,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ceb5beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:34:15, skipping insertion in model container [2020-07-07 12:34:15,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:14" (2/3) ... [2020-07-07 12:34:15,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ceb5beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:34:15, skipping insertion in model container [2020-07-07 12:34:15,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:34:15" (3/3) ... [2020-07-07 12:34:15,760 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-07-07 12:34:15,770 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:34:15,778 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:34:15,792 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:34:15,813 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:34:15,813 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:34:15,813 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:34:15,813 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:34:15,814 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:34:15,814 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:34:15,814 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:34:15,814 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:34:15,834 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-07-07 12:34:15,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:34:15,854 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:15,855 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] [2020-07-07 12:34:15,856 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:15,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:15,862 INFO L82 PathProgramCache]: Analyzing trace with hash -377200977, now seen corresponding path program 1 times [2020-07-07 12:34:15,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:15,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525850030] [2020-07-07 12:34:15,871 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:16,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:16,630 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:16,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:16,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:16,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:16,861 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:16,864 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525850030] [2020-07-07 12:34:16,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:16,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:34:16,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563715123] [2020-07-07 12:34:16,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:34:16,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:16,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:34:16,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:34:16,893 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2020-07-07 12:34:18,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:18,240 INFO L93 Difference]: Finished difference Result 497 states and 588 transitions. [2020-07-07 12:34:18,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:34:18,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:34:18,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:18,259 INFO L225 Difference]: With dead ends: 497 [2020-07-07 12:34:18,260 INFO L226 Difference]: Without dead ends: 307 [2020-07-07 12:34:18,265 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 [2020-07-07 12:34:18,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-07-07 12:34:18,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 264. [2020-07-07 12:34:18,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-07-07 12:34:18,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2020-07-07 12:34:18,406 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 153 [2020-07-07 12:34:18,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:18,409 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2020-07-07 12:34:18,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:34:18,409 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2020-07-07 12:34:18,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:34:18,422 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:18,423 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] [2020-07-07 12:34:18,423 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:34:18,423 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:18,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:18,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1698755128, now seen corresponding path program 1 times [2020-07-07 12:34:18,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:18,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1386686263] [2020-07-07 12:34:18,425 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:18,850 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:18,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:18,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:18,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:18,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:18,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:18,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:18,919 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:18,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1386686263] [2020-07-07 12:34:18,920 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:18,920 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:34:18,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695773022] [2020-07-07 12:34:18,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:34:18,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:18,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:34:18,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:34:18,922 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 4 states. [2020-07-07 12:34:19,465 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:34:20,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:20,388 INFO L93 Difference]: Finished difference Result 405 states and 453 transitions. [2020-07-07 12:34:20,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:34:20,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:34:20,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:20,393 INFO L225 Difference]: With dead ends: 405 [2020-07-07 12:34:20,394 INFO L226 Difference]: Without dead ends: 290 [2020-07-07 12:34:20,396 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 [2020-07-07 12:34:20,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-07-07 12:34:20,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 254. [2020-07-07 12:34:20,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-07-07 12:34:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 273 transitions. [2020-07-07 12:34:20,486 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 273 transitions. Word has length 154 [2020-07-07 12:34:20,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:20,486 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 273 transitions. [2020-07-07 12:34:20,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:34:20,487 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 273 transitions. [2020-07-07 12:34:20,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:34:20,489 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:20,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:20,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:34:20,489 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:20,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:20,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1272338923, now seen corresponding path program 1 times [2020-07-07 12:34:20,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:20,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1784912969] [2020-07-07 12:34:20,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:20,798 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:20,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:20,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:20,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:20,938 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:20,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1784912969] [2020-07-07 12:34:20,939 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:20,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:34:20,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724594048] [2020-07-07 12:34:20,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:34:20,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:20,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:34:20,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:34:20,941 INFO L87 Difference]: Start difference. First operand 254 states and 273 transitions. Second operand 9 states. [2020-07-07 12:34:21,363 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:21,679 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:34:21,899 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:34:22,128 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:22,385 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:22,610 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:23,456 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:34:25,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:25,525 INFO L93 Difference]: Finished difference Result 684 states and 780 transitions. [2020-07-07 12:34:25,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:34:25,527 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:34:25,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:25,532 INFO L225 Difference]: With dead ends: 684 [2020-07-07 12:34:25,532 INFO L226 Difference]: Without dead ends: 540 [2020-07-07 12:34:25,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:34:25,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-07-07 12:34:25,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 461. [2020-07-07 12:34:25,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2020-07-07 12:34:25,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 510 transitions. [2020-07-07 12:34:25,666 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 510 transitions. Word has length 163 [2020-07-07 12:34:25,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:25,667 INFO L479 AbstractCegarLoop]: Abstraction has 461 states and 510 transitions. [2020-07-07 12:34:25,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:34:25,667 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 510 transitions. [2020-07-07 12:34:25,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-07 12:34:25,670 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:25,671 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] [2020-07-07 12:34:25,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:34:25,671 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:25,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:25,672 INFO L82 PathProgramCache]: Analyzing trace with hash 834967554, now seen corresponding path program 1 times [2020-07-07 12:34:25,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:25,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137703191] [2020-07-07 12:34:25,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:25,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:25,983 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:26,090 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:26,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137703191] [2020-07-07 12:34:26,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:26,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:34:26,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869949585] [2020-07-07 12:34:26,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:34:26,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:26,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:34:26,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:34:26,093 INFO L87 Difference]: Start difference. First operand 461 states and 510 transitions. Second operand 6 states. [2020-07-07 12:34:26,519 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:28,138 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:34:28,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:28,717 INFO L93 Difference]: Finished difference Result 1166 states and 1357 transitions. [2020-07-07 12:34:28,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 12:34:28,722 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-07-07 12:34:28,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:28,731 INFO L225 Difference]: With dead ends: 1166 [2020-07-07 12:34:28,731 INFO L226 Difference]: Without dead ends: 815 [2020-07-07 12:34:28,765 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:34:28,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 815 states. [2020-07-07 12:34:28,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 815 to 699. [2020-07-07 12:34:28,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2020-07-07 12:34:28,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 772 transitions. [2020-07-07 12:34:28,994 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 772 transitions. Word has length 171 [2020-07-07 12:34:28,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:28,995 INFO L479 AbstractCegarLoop]: Abstraction has 699 states and 772 transitions. [2020-07-07 12:34:28,995 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:34:28,995 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 772 transitions. [2020-07-07 12:34:28,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:34:28,997 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:28,997 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] [2020-07-07 12:34:28,998 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:34:28,998 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:28,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:28,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1418606569, now seen corresponding path program 1 times [2020-07-07 12:34:28,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:28,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624494025] [2020-07-07 12:34:28,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:29,361 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:29,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:29,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:29,589 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:29,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624494025] [2020-07-07 12:34:29,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:29,591 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:34:29,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117042692] [2020-07-07 12:34:29,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:34:29,592 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:29,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:34:29,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:34:29,594 INFO L87 Difference]: Start difference. First operand 699 states and 772 transitions. Second operand 9 states. [2020-07-07 12:34:30,227 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:31,604 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:31,850 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:32,134 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:32,423 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:32,650 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:32,899 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:33,128 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:34,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:34,565 INFO L93 Difference]: Finished difference Result 1812 states and 2101 transitions. [2020-07-07 12:34:34,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:34:34,565 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:34:34,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:34,573 INFO L225 Difference]: With dead ends: 1812 [2020-07-07 12:34:34,573 INFO L226 Difference]: Without dead ends: 1223 [2020-07-07 12:34:34,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:34:34,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1223 states. [2020-07-07 12:34:34,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1223 to 1140. [2020-07-07 12:34:34,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1140 states. [2020-07-07 12:34:34,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1275 transitions. [2020-07-07 12:34:34,949 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1275 transitions. Word has length 172 [2020-07-07 12:34:34,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:34,949 INFO L479 AbstractCegarLoop]: Abstraction has 1140 states and 1275 transitions. [2020-07-07 12:34:34,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:34:34,950 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1275 transitions. [2020-07-07 12:34:34,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:34:34,953 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:34,953 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] [2020-07-07 12:34:34,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:34:34,953 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:34,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:34,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1797665662, now seen corresponding path program 1 times [2020-07-07 12:34:34,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:34,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2000831793] [2020-07-07 12:34:34,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:35,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:35,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:35,281 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:35,281 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:34:35,282 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:34:35,282 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:34:35,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:34:35 BoogieIcfgContainer [2020-07-07 12:34:35,305 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:34:35,307 INFO L168 Benchmark]: Toolchain (without parser) took 21485.62 ms. Allocated memory was 144.2 MB in the beginning and 682.6 MB in the end (delta: 538.4 MB). Free memory was 102.4 MB in the beginning and 588.3 MB in the end (delta: -485.9 MB). Peak memory consumption was 52.6 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:35,308 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 144.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:34:35,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.60 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 102.2 MB in the beginning and 171.3 MB in the end (delta: -69.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:35,310 INFO L168 Benchmark]: Boogie Preprocessor took 83.65 ms. Allocated memory is still 201.9 MB. Free memory was 171.3 MB in the beginning and 167.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:35,310 INFO L168 Benchmark]: RCFGBuilder took 1164.02 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 167.3 MB in the beginning and 176.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:35,311 INFO L168 Benchmark]: TraceAbstraction took 19552.31 ms. Allocated memory was 234.4 MB in the beginning and 682.6 MB in the end (delta: 448.3 MB). Free memory was 174.9 MB in the beginning and 588.3 MB in the end (delta: -413.4 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:35,315 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 144.2 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 680.60 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 102.2 MB in the beginning and 171.3 MB in the end (delta: -69.1 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.65 ms. Allocated memory is still 201.9 MB. Free memory was 171.3 MB in the beginning and 167.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1164.02 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 167.3 MB in the beginning and 176.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19552.31 ms. Allocated memory was 234.4 MB in the beginning and 682.6 MB in the end (delta: 448.3 MB). Free memory was 174.9 MB in the beginning and 588.3 MB in the end (delta: -413.4 MB). Peak memory consumption was 34.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) [L804] CALL waterRise() [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 [L804] RET waterRise() [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L770] COND FALSE !(\read(pumpRunning)) [L777] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND FALSE !(\read(systemActive)) [L619] CALL __utac_acc__Specification3_spec__1() [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L163] CALL, EXPR isMethaneLevelCritical() [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); [L163] RET, EXPR isMethaneLevelCritical() [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L169] CALL, EXPR getWaterLevel() [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); [L169] RET, EXPR getWaterLevel() [L169] tmp___0 = getWaterLevel() [L171] COND TRUE tmp___0 == 2 [L173] CALL, EXPR isPumpRunning() [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); [L173] RET, EXPR isPumpRunning() [L173] tmp___1 = isPumpRunning() [L175] COND FALSE !(\read(tmp___1)) [L179] CALL __automaton_fail() [L148] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 19.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 15.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1258 SDtfs, 1740 SDslu, 1621 SDs, 0 SdLazy, 3616 SolverSat, 547 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1140occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 357 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...