/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_spec2_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 17:58:54,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 17:58:54,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 17:58:54,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 17:58:54,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 17:58:54,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 17:58:54,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 17:58:54,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 17:58:54,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 17:58:54,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 17:58:54,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 17:58:54,266 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 17:58:54,266 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 17:58:54,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 17:58:54,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 17:58:54,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 17:58:54,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 17:58:54,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 17:58:54,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 17:58:54,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 17:58:54,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 17:58:54,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 17:58:54,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 17:58:54,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 17:58:54,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 17:58:54,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 17:58:54,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 17:58:54,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 17:58:54,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 17:58:54,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 17:58:54,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 17:58:54,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 17:58:54,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 17:58:54,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 17:58:54,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 17:58:54,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 17:58:54,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 17:58:54,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 17:58:54,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 17:58:54,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 17:58:54,290 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 17:58:54,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 17:58:54,300 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 17:58:54,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 17:58:54,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 17:58:54,302 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 17:58:54,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 17:58:54,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 17:58:54,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 17:58:54,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 17:58:54,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 17:58:54,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 17:58:54,303 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 17:58:54,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 17:58:54,304 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 17:58:54,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 17:58:54,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 17:58:54,304 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 17:58:54,304 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 17:58:54,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 17:58:54,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 17:58:54,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 17:58:54,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 17:58:54,305 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 17:58:54,306 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 17:58:54,595 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 17:58:54,614 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 17:58:54,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 17:58:54,620 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 17:58:54,620 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 17:58:54,621 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-08-22 17:58:54,693 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78de9f03b/a7b1f975957442f0af530968ee0e4064/FLAG479b42fef [2020-08-22 17:58:55,242 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 17:58:55,243 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product35.cil.c [2020-08-22 17:58:55,256 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78de9f03b/a7b1f975957442f0af530968ee0e4064/FLAG479b42fef [2020-08-22 17:58:55,646 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78de9f03b/a7b1f975957442f0af530968ee0e4064 [2020-08-22 17:58:55,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 17:58:55,657 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 17:58:55,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 17:58:55,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 17:58:55,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 17:58:55,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 05:58:55" (1/1) ... [2020-08-22 17:58:55,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aef3183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:58:55, skipping insertion in model container [2020-08-22 17:58:55,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 05:58:55" (1/1) ... [2020-08-22 17:58:55,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 17:58:55,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 17:58:56,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 17:58:56,160 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 17:58:56,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 17:58:56,271 INFO L208 MainTranslator]: Completed translation [2020-08-22 17:58:56,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:58:56 WrapperNode [2020-08-22 17:58:56,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 17:58:56,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 17:58:56,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 17:58:56,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 17:58:56,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:58:56" (1/1) ... [2020-08-22 17:58:56,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:58:56" (1/1) ... [2020-08-22 17:58:56,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:58:56" (1/1) ... [2020-08-22 17:58:56,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:58:56" (1/1) ... [2020-08-22 17:58:56,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:58:56" (1/1) ... [2020-08-22 17:58:56,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:58:56" (1/1) ... [2020-08-22 17:58:56,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:58:56" (1/1) ... [2020-08-22 17:58:56,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 17:58:56,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 17:58:56,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 17:58:56,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 17:58:56,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:58:56" (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 [2020-08-22 17:58:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 17:58:56,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 17:58:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 17:58:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 17:58:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 17:58:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 17:58:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 17:58:56,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 17:58:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 17:58:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 17:58:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 17:58:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 17:58:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 17:58:56,464 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 17:58:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 17:58:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 17:58:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 17:58:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 17:58:56,465 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 17:58:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 17:58:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-08-22 17:58:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-08-22 17:58:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 17:58:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 17:58:56,466 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 17:58:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 17:58:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 17:58:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 17:58:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 17:58:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 17:58:56,467 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 17:58:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 17:58:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 17:58:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 17:58:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 17:58:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 17:58:56,468 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 17:58:56,469 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 17:58:56,469 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 17:58:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 17:58:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 17:58:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 17:58:56,469 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 17:58:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 17:58:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 17:58:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 17:58:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 17:58:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 17:58:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 17:58:56,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 17:58:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 17:58:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 17:58:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 17:58:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 17:58:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 17:58:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 17:58:56,471 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 17:58:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 17:58:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 17:58:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 17:58:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 17:58:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 17:58:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 17:58:56,472 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 17:58:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 17:58:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 17:58:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 17:58:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 17:58:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 17:58:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-08-22 17:58:56,473 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 17:58:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 17:58:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 17:58:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 17:58:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 17:58:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 17:58:56,474 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 17:58:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 17:58:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 17:58:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-08-22 17:58:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 17:58:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 17:58:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 17:58:56,475 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 17:58:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 17:58:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 17:58:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 17:58:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 17:58:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 17:58:56,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 17:58:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 17:58:56,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 17:58:57,586 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 17:58:57,587 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 17:58:57,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 05:58:57 BoogieIcfgContainer [2020-08-22 17:58:57,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 17:58:57,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 17:58:57,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 17:58:57,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 17:58:57,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 05:58:55" (1/3) ... [2020-08-22 17:58:57,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c410b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 05:58:57, skipping insertion in model container [2020-08-22 17:58:57,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:58:56" (2/3) ... [2020-08-22 17:58:57,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c410b6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 05:58:57, skipping insertion in model container [2020-08-22 17:58:57,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 05:58:57" (3/3) ... [2020-08-22 17:58:57,607 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-08-22 17:58:57,617 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 17:58:57,630 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 17:58:57,644 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 17:58:57,668 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 17:58:57,669 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 17:58:57,669 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 17:58:57,669 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 17:58:57,670 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 17:58:57,670 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 17:58:57,670 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 17:58:57,670 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 17:58:57,691 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-08-22 17:58:57,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-08-22 17:58:57,710 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:58:57,712 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] [2020-08-22 17:58:57,712 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:58:57,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:58:57,717 INFO L82 PathProgramCache]: Analyzing trace with hash -1842377824, now seen corresponding path program 1 times [2020-08-22 17:58:57,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:58:57,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1143125740] [2020-08-22 17:58:57,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:58:57,781 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:58:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:58:58,419 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:58:58,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:58:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:58:58,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 17:58:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:58:58,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 17:58:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:58:58,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 17:58:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:58:58,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 17:58:58,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:58:58,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 17:58:58,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:58:58,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 17:58:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:58:58,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 17:58:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:58:58,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 17:58:58,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1143125740] [2020-08-22 17:58:58,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:58:58,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 17:58:58,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826543988] [2020-08-22 17:58:58,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 17:58:58,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:58:58,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 17:58:58,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 17:58:58,709 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 4 states. [2020-08-22 17:58:59,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:58:59,896 INFO L93 Difference]: Finished difference Result 453 states and 537 transitions. [2020-08-22 17:58:59,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-22 17:58:59,898 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-08-22 17:58:59,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:58:59,915 INFO L225 Difference]: With dead ends: 453 [2020-08-22 17:58:59,915 INFO L226 Difference]: Without dead ends: 293 [2020-08-22 17:58:59,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-08-22 17:58:59,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-08-22 17:59:00,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 245. [2020-08-22 17:59:00,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-08-22 17:59:00,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-08-22 17:59:00,058 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 148 [2020-08-22 17:59:00,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:59:00,059 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-08-22 17:59:00,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 17:59:00,059 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-08-22 17:59:00,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-08-22 17:59:00,064 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:59:00,064 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] [2020-08-22 17:59:00,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 17:59:00,065 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:59:00,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:59:00,065 INFO L82 PathProgramCache]: Analyzing trace with hash 983801139, now seen corresponding path program 1 times [2020-08-22 17:59:00,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:59:00,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834564134] [2020-08-22 17:59:00,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:59:00,069 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:59:00,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:00,390 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:59:00,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:59:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:00,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 17:59:00,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:00,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 17:59:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:00,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 17:59:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:00,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 17:59:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:00,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 17:59:00,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:00,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-08-22 17:59:00,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:00,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 17:59:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:00,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 17:59:00,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834564134] [2020-08-22 17:59:00,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:59:00,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 17:59:00,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157629602] [2020-08-22 17:59:00,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 17:59:00,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:59:00,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 17:59:00,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 17:59:00,500 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 5 states. [2020-08-22 17:59:01,122 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:59:01,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:59:01,951 INFO L93 Difference]: Finished difference Result 373 states and 422 transitions. [2020-08-22 17:59:01,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 17:59:01,952 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-08-22 17:59:01,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:59:01,956 INFO L225 Difference]: With dead ends: 373 [2020-08-22 17:59:01,956 INFO L226 Difference]: Without dead ends: 282 [2020-08-22 17:59:01,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 17:59:01,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-08-22 17:59:02,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 235. [2020-08-22 17:59:02,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-08-22 17:59:02,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-08-22 17:59:02,017 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 149 [2020-08-22 17:59:02,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:59:02,018 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-08-22 17:59:02,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 17:59:02,018 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-08-22 17:59:02,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-08-22 17:59:02,021 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:59:02,021 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] [2020-08-22 17:59:02,021 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 17:59:02,021 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:59:02,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:59:02,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1583247536, now seen corresponding path program 1 times [2020-08-22 17:59:02,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:59:02,022 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362001465] [2020-08-22 17:59:02,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:59:02,025 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:59:02,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:02,378 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:59:02,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:59:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:02,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 17:59:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:02,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 17:59:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:02,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 17:59:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:02,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 17:59:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:02,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 17:59:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:02,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 17:59:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:02,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 17:59:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:02,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 17:59:02,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362001465] [2020-08-22 17:59:02,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:59:02,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 17:59:02,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417481914] [2020-08-22 17:59:02,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 17:59:02,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:59:02,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 17:59:02,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 17:59:02,572 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 10 states. [2020-08-22 17:59:03,106 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:59:03,490 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 17:59:03,727 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 17:59:04,013 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:59:04,250 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 17:59:04,483 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:59:05,387 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:59:07,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:59:07,039 INFO L93 Difference]: Finished difference Result 616 states and 713 transitions. [2020-08-22 17:59:07,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 17:59:07,041 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 158 [2020-08-22 17:59:07,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:59:07,047 INFO L225 Difference]: With dead ends: 616 [2020-08-22 17:59:07,047 INFO L226 Difference]: Without dead ends: 496 [2020-08-22 17:59:07,049 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-08-22 17:59:07,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-08-22 17:59:07,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 411. [2020-08-22 17:59:07,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-08-22 17:59:07,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 456 transitions. [2020-08-22 17:59:07,187 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 456 transitions. Word has length 158 [2020-08-22 17:59:07,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:59:07,187 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 456 transitions. [2020-08-22 17:59:07,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 17:59:07,188 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 456 transitions. [2020-08-22 17:59:07,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-08-22 17:59:07,191 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:59:07,191 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] [2020-08-22 17:59:07,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 17:59:07,191 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:59:07,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:59:07,192 INFO L82 PathProgramCache]: Analyzing trace with hash -247370093, now seen corresponding path program 1 times [2020-08-22 17:59:07,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:59:07,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572408868] [2020-08-22 17:59:07,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:59:07,195 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:59:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:07,500 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:59:07,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:59:07,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:07,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 17:59:07,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:07,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 17:59:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:07,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 17:59:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:07,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 17:59:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:07,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 17:59:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:07,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 17:59:07,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:07,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 17:59:07,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:07,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-08-22 17:59:07,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:07,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-08-22 17:59:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:07,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 17:59:07,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572408868] [2020-08-22 17:59:07,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:59:07,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 17:59:07,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482219194] [2020-08-22 17:59:07,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 17:59:07,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:59:07,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 17:59:07,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 17:59:07,654 INFO L87 Difference]: Start difference. First operand 411 states and 456 transitions. Second operand 7 states. [2020-08-22 17:59:08,141 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:59:09,924 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:59:10,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:59:10,541 INFO L93 Difference]: Finished difference Result 1041 states and 1238 transitions. [2020-08-22 17:59:10,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 17:59:10,542 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-08-22 17:59:10,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:59:10,548 INFO L225 Difference]: With dead ends: 1041 [2020-08-22 17:59:10,548 INFO L226 Difference]: Without dead ends: 745 [2020-08-22 17:59:10,550 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2020-08-22 17:59:10,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2020-08-22 17:59:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 617. [2020-08-22 17:59:10,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 617 states. [2020-08-22 17:59:10,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 686 transitions. [2020-08-22 17:59:10,723 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 686 transitions. Word has length 166 [2020-08-22 17:59:10,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:59:10,724 INFO L479 AbstractCegarLoop]: Abstraction has 617 states and 686 transitions. [2020-08-22 17:59:10,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 17:59:10,724 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 686 transitions. [2020-08-22 17:59:10,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 17:59:10,726 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:59:10,726 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 17:59:10,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 17:59:10,727 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:59:10,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:59:10,727 INFO L82 PathProgramCache]: Analyzing trace with hash 662442186, now seen corresponding path program 1 times [2020-08-22 17:59:10,727 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:59:10,727 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727241090] [2020-08-22 17:59:10,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:59:10,730 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:59:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:11,033 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:59:11,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:59:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:11,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 17:59:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:11,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 17:59:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:11,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 17:59:11,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:11,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 17:59:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:11,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 17:59:11,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:11,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-08-22 17:59:11,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:11,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 17:59:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:11,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-08-22 17:59:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:11,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 17:59:11,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727241090] [2020-08-22 17:59:11,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:59:11,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 17:59:11,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077575175] [2020-08-22 17:59:11,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 17:59:11,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:59:11,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 17:59:11,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 17:59:11,196 INFO L87 Difference]: Start difference. First operand 617 states and 686 transitions. Second operand 10 states. [2020-08-22 17:59:11,718 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:59:12,786 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:59:13,031 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 17:59:13,288 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:59:13,575 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:59:13,805 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 17:59:14,031 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:59:14,254 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:59:14,631 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:59:16,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:59:16,090 INFO L93 Difference]: Finished difference Result 1664 states and 1961 transitions. [2020-08-22 17:59:16,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-08-22 17:59:16,091 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-08-22 17:59:16,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:59:16,098 INFO L225 Difference]: With dead ends: 1664 [2020-08-22 17:59:16,099 INFO L226 Difference]: Without dead ends: 1162 [2020-08-22 17:59:16,101 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=159, Invalid=441, Unknown=0, NotChecked=0, Total=600 [2020-08-22 17:59:16,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2020-08-22 17:59:16,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1015. [2020-08-22 17:59:16,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1015 states. [2020-08-22 17:59:16,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1133 transitions. [2020-08-22 17:59:16,507 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1133 transitions. Word has length 167 [2020-08-22 17:59:16,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:59:16,507 INFO L479 AbstractCegarLoop]: Abstraction has 1015 states and 1133 transitions. [2020-08-22 17:59:16,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 17:59:16,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1133 transitions. [2020-08-22 17:59:16,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 17:59:16,510 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:59:16,510 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] [2020-08-22 17:59:16,511 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 17:59:16,511 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:59:16,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:59:16,511 INFO L82 PathProgramCache]: Analyzing trace with hash 2046553612, now seen corresponding path program 1 times [2020-08-22 17:59:16,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:59:16,512 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416277639] [2020-08-22 17:59:16,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:59:16,514 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:59:16,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:16,797 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:59:16,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:59:16,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:16,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 17:59:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:16,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 17:59:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:16,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 17:59:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:16,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 17:59:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:16,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 17:59:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:16,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 17:59:16,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:16,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-08-22 17:59:16,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:16,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-08-22 17:59:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:16,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-08-22 17:59:16,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:16,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 17:59:16,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416277639] [2020-08-22 17:59:16,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:59:16,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 17:59:16,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313329884] [2020-08-22 17:59:16,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 17:59:16,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:59:16,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 17:59:16,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-08-22 17:59:16,956 INFO L87 Difference]: Start difference. First operand 1015 states and 1133 transitions. Second operand 11 states. [2020-08-22 17:59:17,423 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:59:18,693 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:59:18,939 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 17:59:19,232 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:59:19,488 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-08-22 17:59:19,716 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:59:20,343 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:59:20,566 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:59:20,897 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:59:21,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:59:21,869 INFO L93 Difference]: Finished difference Result 2185 states and 2551 transitions. [2020-08-22 17:59:21,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-22 17:59:21,870 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 172 [2020-08-22 17:59:21,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:59:21,877 INFO L225 Difference]: With dead ends: 2185 [2020-08-22 17:59:21,877 INFO L226 Difference]: Without dead ends: 1285 [2020-08-22 17:59:21,880 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=283, Invalid=773, Unknown=0, NotChecked=0, Total=1056 [2020-08-22 17:59:21,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2020-08-22 17:59:22,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1009. [2020-08-22 17:59:22,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2020-08-22 17:59:22,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1121 transitions. [2020-08-22 17:59:22,181 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1121 transitions. Word has length 172 [2020-08-22 17:59:22,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:59:22,182 INFO L479 AbstractCegarLoop]: Abstraction has 1009 states and 1121 transitions. [2020-08-22 17:59:22,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 17:59:22,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1121 transitions. [2020-08-22 17:59:22,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-08-22 17:59:22,192 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:59:22,192 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 17:59:22,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 17:59:22,193 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:59:22,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:59:22,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1482697685, now seen corresponding path program 1 times [2020-08-22 17:59:22,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:59:22,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [943980447] [2020-08-22 17:59:22,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:59:22,196 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:59:22,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,439 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:59:22,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:59:22,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 17:59:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 17:59:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 17:59:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 17:59:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 17:59:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 17:59:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-22 17:59:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 17:59:22,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 17:59:22,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 17:59:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 17:59:22,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-08-22 17:59:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:22,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 17:59:22,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [943980447] [2020-08-22 17:59:22,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:59:22,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 17:59:22,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792004911] [2020-08-22 17:59:22,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 17:59:22,662 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:59:22,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 17:59:22,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-08-22 17:59:22,664 INFO L87 Difference]: Start difference. First operand 1009 states and 1121 transitions. Second operand 11 states. [2020-08-22 17:59:23,998 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:59:24,237 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 17:59:24,486 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-08-22 17:59:24,729 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:59:24,995 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 17:59:25,218 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:59:26,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:59:26,376 INFO L93 Difference]: Finished difference Result 2323 states and 2761 transitions. [2020-08-22 17:59:26,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 17:59:26,376 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 196 [2020-08-22 17:59:26,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:59:26,385 INFO L225 Difference]: With dead ends: 2323 [2020-08-22 17:59:26,385 INFO L226 Difference]: Without dead ends: 1429 [2020-08-22 17:59:26,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-08-22 17:59:26,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1429 states. [2020-08-22 17:59:26,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1429 to 1041. [2020-08-22 17:59:26,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2020-08-22 17:59:26,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 1153 transitions. [2020-08-22 17:59:26,683 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 1153 transitions. Word has length 196 [2020-08-22 17:59:26,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:59:26,683 INFO L479 AbstractCegarLoop]: Abstraction has 1041 states and 1153 transitions. [2020-08-22 17:59:26,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 17:59:26,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 1153 transitions. [2020-08-22 17:59:26,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-08-22 17:59:26,686 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:59:26,687 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 17:59:26,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 17:59:26,687 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:59:26,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:59:26,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1672475787, now seen corresponding path program 1 times [2020-08-22 17:59:26,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:59:26,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95625477] [2020-08-22 17:59:26,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:59:26,690 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:59:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:26,938 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:59:26,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:59:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:26,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 17:59:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:26,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 17:59:26,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:26,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 17:59:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:26,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 17:59:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:27,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 17:59:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:27,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 17:59:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:27,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-22 17:59:27,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:27,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 17:59:27,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:27,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 17:59:27,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:27,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 17:59:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:27,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 17:59:27,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:27,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-08-22 17:59:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:27,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 17:59:27,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95625477] [2020-08-22 17:59:27,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:59:27,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 17:59:27,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807802737] [2020-08-22 17:59:27,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 17:59:27,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:59:27,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 17:59:27,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-08-22 17:59:27,146 INFO L87 Difference]: Start difference. First operand 1041 states and 1153 transitions. Second operand 14 states. [2020-08-22 17:59:27,737 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:59:27,973 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 17:59:28,203 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:59:28,431 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 17:59:28,649 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:59:29,477 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:59:29,714 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 17:59:29,964 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:59:30,228 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 17:59:30,510 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:59:32,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:59:32,104 INFO L93 Difference]: Finished difference Result 2399 states and 2874 transitions. [2020-08-22 17:59:32,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 17:59:32,104 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 196 [2020-08-22 17:59:32,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:59:32,112 INFO L225 Difference]: With dead ends: 2399 [2020-08-22 17:59:32,113 INFO L226 Difference]: Without dead ends: 1473 [2020-08-22 17:59:32,116 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-08-22 17:59:32,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2020-08-22 17:59:32,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1065. [2020-08-22 17:59:32,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1065 states. [2020-08-22 17:59:32,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1177 transitions. [2020-08-22 17:59:32,657 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1177 transitions. Word has length 196 [2020-08-22 17:59:32,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:59:32,658 INFO L479 AbstractCegarLoop]: Abstraction has 1065 states and 1177 transitions. [2020-08-22 17:59:32,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 17:59:32,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1177 transitions. [2020-08-22 17:59:32,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-08-22 17:59:32,662 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:59:32,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 17:59:32,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 17:59:32,663 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:59:32,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:59:32,663 INFO L82 PathProgramCache]: Analyzing trace with hash -458646904, now seen corresponding path program 1 times [2020-08-22 17:59:32,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:59:32,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1524875443] [2020-08-22 17:59:32,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:59:32,666 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:59:32,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:32,928 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:59:32,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:59:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:32,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 17:59:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:32,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 17:59:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:32,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 17:59:32,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:32,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 17:59:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:32,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 17:59:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:33,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-08-22 17:59:33,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:33,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-08-22 17:59:33,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:33,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 17:59:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:33,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 17:59:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:33,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 17:59:33,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:33,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-22 17:59:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:33,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-08-22 17:59:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:33,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 17:59:33,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1524875443] [2020-08-22 17:59:33,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:59:33,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 17:59:33,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557732833] [2020-08-22 17:59:33,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 17:59:33,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:59:33,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 17:59:33,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 17:59:33,131 INFO L87 Difference]: Start difference. First operand 1065 states and 1177 transitions. Second operand 8 states. [2020-08-22 17:59:33,577 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:59:34,220 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:59:36,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:59:36,679 INFO L93 Difference]: Finished difference Result 3607 states and 4400 transitions. [2020-08-22 17:59:36,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 17:59:36,680 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 196 [2020-08-22 17:59:36,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:59:36,695 INFO L225 Difference]: With dead ends: 3607 [2020-08-22 17:59:36,696 INFO L226 Difference]: Without dead ends: 2657 [2020-08-22 17:59:36,700 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2020-08-22 17:59:36,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2657 states. [2020-08-22 17:59:37,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2657 to 2107. [2020-08-22 17:59:37,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2107 states. [2020-08-22 17:59:37,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2383 transitions. [2020-08-22 17:59:37,650 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2383 transitions. Word has length 196 [2020-08-22 17:59:37,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:59:37,651 INFO L479 AbstractCegarLoop]: Abstraction has 2107 states and 2383 transitions. [2020-08-22 17:59:37,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 17:59:37,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2383 transitions. [2020-08-22 17:59:37,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-08-22 17:59:37,656 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:59:37,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 17:59:37,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 17:59:37,657 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:59:37,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:59:37,657 INFO L82 PathProgramCache]: Analyzing trace with hash 738354595, now seen corresponding path program 1 times [2020-08-22 17:59:37,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:59:37,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1460859562] [2020-08-22 17:59:37,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:59:37,664 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:59:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:37,954 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:59:37,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:59:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:37,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-08-22 17:59:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 17:59:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 17:59:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 17:59:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 17:59:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 17:59:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 17:59:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 17:59:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 17:59:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 17:59:38,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 17:59:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-08-22 17:59:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2020-08-22 17:59:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:59:38,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 17:59:38,153 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1460859562] [2020-08-22 17:59:38,154 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:59:38,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 17:59:38,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507642488] [2020-08-22 17:59:38,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 17:59:38,155 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:59:38,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 17:59:38,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 17:59:38,156 INFO L87 Difference]: Start difference. First operand 2107 states and 2383 transitions. Second operand 8 states. [2020-08-22 17:59:38,844 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:59:42,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:59:42,232 INFO L93 Difference]: Finished difference Result 4169 states and 5064 transitions. [2020-08-22 17:59:42,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 17:59:42,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 201 [2020-08-22 17:59:42,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:59:42,260 INFO L225 Difference]: With dead ends: 4169 [2020-08-22 17:59:42,261 INFO L226 Difference]: Without dead ends: 4166 [2020-08-22 17:59:42,264 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=199, Invalid=503, Unknown=0, NotChecked=0, Total=702 [2020-08-22 17:59:42,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4166 states. [2020-08-22 17:59:43,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4166 to 3255. [2020-08-22 17:59:43,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3255 states. [2020-08-22 17:59:43,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3255 states to 3255 states and 3701 transitions. [2020-08-22 17:59:43,385 INFO L78 Accepts]: Start accepts. Automaton has 3255 states and 3701 transitions. Word has length 201 [2020-08-22 17:59:43,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:59:43,385 INFO L479 AbstractCegarLoop]: Abstraction has 3255 states and 3701 transitions. [2020-08-22 17:59:43,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 17:59:43,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3255 states and 3701 transitions. [2020-08-22 17:59:43,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-08-22 17:59:43,392 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:59:43,393 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 17:59:43,393 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 17:59:43,393 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:59:43,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:59:43,394 INFO L82 PathProgramCache]: Analyzing trace with hash 851018372, now seen corresponding path program 1 times [2020-08-22 17:59:43,394 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:59:43,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921546576] [2020-08-22 17:59:43,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:59:43,430 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:59:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 17:59:43,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 17:59:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 17:59:43,532 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 17:59:43,817 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 17:59:43,817 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 17:59:43,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 17:59:43,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 05:59:43 BoogieIcfgContainer [2020-08-22 17:59:43,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 17:59:43,851 INFO L168 Benchmark]: Toolchain (without parser) took 48194.78 ms. Allocated memory was 146.3 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 102.7 MB in the beginning and 423.8 MB in the end (delta: -321.2 MB). Peak memory consumption was 745.2 MB. Max. memory is 7.1 GB. [2020-08-22 17:59:43,852 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-08-22 17:59:43,852 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.10 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 102.2 MB in the beginning and 168.6 MB in the end (delta: -66.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2020-08-22 17:59:43,853 INFO L168 Benchmark]: Boogie Preprocessor took 123.07 ms. Allocated memory is still 202.4 MB. Free memory was 168.6 MB in the beginning and 164.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2020-08-22 17:59:43,854 INFO L168 Benchmark]: RCFGBuilder took 1202.08 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 164.7 MB in the beginning and 173.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-08-22 17:59:43,855 INFO L168 Benchmark]: TraceAbstraction took 46250.87 ms. Allocated memory was 235.9 MB in the beginning and 1.2 GB in the end (delta: 976.7 MB). Free memory was 173.6 MB in the beginning and 423.8 MB in the end (delta: -250.2 MB). Peak memory consumption was 726.5 MB. Max. memory is 7.1 GB. [2020-08-22 17:59:43,858 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 146.3 MB. Free memory was 121.9 MB in the beginning and 121.5 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 614.10 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 102.2 MB in the beginning and 168.6 MB in the end (delta: -66.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.07 ms. Allocated memory is still 202.4 MB. Free memory was 168.6 MB in the beginning and 164.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1202.08 ms. Allocated memory was 202.4 MB in the beginning and 235.9 MB in the end (delta: 33.6 MB). Free memory was 164.7 MB in the beginning and 173.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 46250.87 ms. Allocated memory was 235.9 MB in the beginning and 1.2 GB in the end (delta: 976.7 MB). Free memory was 173.6 MB in the beginning and 423.8 MB in the end (delta: -250.2 MB). Peak memory consumption was 726.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 736]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int pumpRunning = 0; [L417] int systemActive = 1; [L655] int methAndRunningLastTime ; [L741] int cleanupTimeShifts = 4; [L839] int waterLevel = 1; [L840] int methaneLevelCritical = 0; [L815] int retValue_acc ; [L816] int tmp ; [L820] FCALL select_helpers() [L821] FCALL select_features() [L822] CALL, EXPR valid_product() [L723] int retValue_acc ; [L726] retValue_acc = 1 [L727] return (retValue_acc); [L822] RET, EXPR valid_product() [L822] tmp = valid_product() [L824] COND TRUE \read(tmp) [L826] FCALL setup() [L827] CALL runTest() [L808] CALL __utac_acc__Specification2_spec__1() [L660] methAndRunningLastTime = 0 [L808] RET __utac_acc__Specification2_spec__1() [L809] CALL test() [L588] int splverifierCounter ; [L589] int tmp ; [L590] int tmp___0 ; [L591] int tmp___1 ; [L592] int tmp___2 ; [L595] splverifierCounter = 0 [L597] COND TRUE 1 [L599] COND TRUE splverifierCounter < 4 [L605] tmp = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp) [L609] CALL waterRise() [L857] COND TRUE waterLevel < 2 [L858] waterLevel = waterLevel + 1 [L609] RET waterRise() [L615] tmp___0 = __VERIFIER_nondet_int() [L617] COND TRUE \read(tmp___0) [L619] CALL changeMethaneLevel() [L869] COND FALSE !(\read(methaneLevelCritical)) [L872] methaneLevelCritical = 1 [L619] RET changeMethaneLevel() [L625] tmp___2 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___2) [L642] CALL timeShift() [L424] COND FALSE !(\read(pumpRunning)) [L431] COND TRUE \read(systemActive) [L433] CALL processEnvironment() [L453] int tmp ; [L456] COND TRUE ! pumpRunning [L458] CALL, EXPR isHighWaterLevel() [L550] int retValue_acc ; [L551] int tmp ; [L552] int tmp___0 ; [L556] CALL, EXPR isHighWaterSensorDry() [L919] int retValue_acc ; [L922] COND FALSE !(waterLevel < 2) [L926] retValue_acc = 0 [L927] return (retValue_acc); [L556] RET, EXPR isHighWaterSensorDry() [L556] tmp = isHighWaterSensorDry() [L558] COND FALSE !(\read(tmp)) [L561] tmp___0 = 1 [L563] retValue_acc = tmp___0 [L564] return (retValue_acc); [L458] RET, EXPR isHighWaterLevel() [L458] tmp = isHighWaterLevel() [L460] COND TRUE \read(tmp) [L462] CALL activatePump() [L481] pumpRunning = 1 [L462] RET activatePump() [L433] RET processEnvironment() [L439] CALL __utac_acc__Specification2_spec__2() [L665] int tmp ; [L666] int tmp___0 ; [L670] CALL, EXPR isMethaneLevelCritical() [L878] int retValue_acc ; [L881] retValue_acc = methaneLevelCritical [L882] return (retValue_acc); [L670] RET, EXPR isMethaneLevelCritical() [L670] tmp = isMethaneLevelCritical() [L672] COND TRUE \read(tmp) [L674] CALL, EXPR isPumpRunning() [L505] int retValue_acc ; [L508] retValue_acc = pumpRunning [L509] return (retValue_acc); [L674] RET, EXPR isPumpRunning() [L674] tmp___0 = isPumpRunning() [L676] COND TRUE \read(tmp___0) [L677] COND FALSE !(\read(methAndRunningLastTime)) [L682] methAndRunningLastTime = 1 [L439] RET __utac_acc__Specification2_spec__2() [L642] RET timeShift() [L597] COND TRUE 1 [L599] COND TRUE splverifierCounter < 4 [L605] tmp = __VERIFIER_nondet_int() [L607] COND FALSE !(\read(tmp)) [L615] tmp___0 = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp___0)) [L625] tmp___2 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___2) [L642] CALL timeShift() [L424] COND TRUE \read(pumpRunning) [L426] CALL lowerWaterLevel() [L845] COND TRUE waterLevel > 0 [L846] waterLevel = waterLevel - 1 [L426] RET lowerWaterLevel() [L431] COND TRUE \read(systemActive) [L433] CALL processEnvironment() [L453] int tmp ; [L456] COND FALSE !(! pumpRunning) [L471] FCALL processEnvironment__wrappee__base() [L433] RET processEnvironment() [L439] CALL __utac_acc__Specification2_spec__2() [L665] int tmp ; [L666] int tmp___0 ; [L670] CALL, EXPR isMethaneLevelCritical() [L878] int retValue_acc ; [L881] retValue_acc = methaneLevelCritical [L882] return (retValue_acc); [L670] RET, EXPR isMethaneLevelCritical() [L670] tmp = isMethaneLevelCritical() [L672] COND TRUE \read(tmp) [L674] CALL, EXPR isPumpRunning() [L505] int retValue_acc ; [L508] retValue_acc = pumpRunning [L509] return (retValue_acc); [L674] RET, EXPR isPumpRunning() [L674] tmp___0 = isPumpRunning() [L676] COND TRUE \read(tmp___0) [L677] COND TRUE \read(methAndRunningLastTime) [L679] CALL __automaton_fail() [L736] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 621 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 46.1s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 36.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2310 SDtfs, 6785 SDslu, 4484 SDs, 0 SdLazy, 8753 SolverSat, 2037 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 454 GetRequests, 266 SyntacticMatches, 3 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 815 ImplicationChecksByTransitivity, 14.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3255occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 2988 StatesRemovedByMinimization, 10 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...