/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:04:56,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:04:56,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:04:56,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:04:56,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:04:56,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:04:56,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:04:56,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:04:56,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:04:56,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:04:56,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:04:56,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:04:56,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:04:56,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:04:56,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:04:56,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:04:56,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:04:56,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:04:56,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:04:56,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:04:56,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:04:56,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:04:56,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:04:56,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:04:56,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:04:56,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:04:56,310 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:04:56,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:04:56,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:04:56,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:04:56,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:04:56,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:04:56,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:04:56,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:04:56,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:04:56,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:04:56,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:04:56,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:04:56,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:04:56,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:04:56,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:04:56,327 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 18:04:56,342 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:04:56,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:04:56,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:04:56,345 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:04:56,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:04:56,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:04:56,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:04:56,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:04:56,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:04:56,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:04:56,347 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:04:56,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:04:56,348 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:04:56,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:04:56,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:04:56,349 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:04:56,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:04:56,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:04:56,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:04:56,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:04:56,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:04:56,350 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:04:56,350 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:04:56,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:04:56,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:04:56,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:04:56,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:04:56,655 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:04:56,656 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-08-22 18:04:56,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc830dc1c/4688401680204b77bda418268df03bc4/FLAGe0a33d32f [2020-08-22 18:04:57,336 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:04:57,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-08-22 18:04:57,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc830dc1c/4688401680204b77bda418268df03bc4/FLAGe0a33d32f [2020-08-22 18:04:57,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc830dc1c/4688401680204b77bda418268df03bc4 [2020-08-22 18:04:57,643 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:04:57,645 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:04:57,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:04:57,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:04:57,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:04:57,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:04:57" (1/1) ... [2020-08-22 18:04:57,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b134fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:57, skipping insertion in model container [2020-08-22 18:04:57,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:04:57" (1/1) ... [2020-08-22 18:04:57,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:04:57,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:04:58,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:04:58,187 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:04:58,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:04:58,303 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:04:58,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:58 WrapperNode [2020-08-22 18:04:58,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:04:58,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:04:58,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:04:58,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:04:58,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:58" (1/1) ... [2020-08-22 18:04:58,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:58" (1/1) ... [2020-08-22 18:04:58,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:58" (1/1) ... [2020-08-22 18:04:58,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:58" (1/1) ... [2020-08-22 18:04:58,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:58" (1/1) ... [2020-08-22 18:04:58,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:58" (1/1) ... [2020-08-22 18:04:58,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:58" (1/1) ... [2020-08-22 18:04:58,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:04:58,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:04:58,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:04:58,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:04:58,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:58" (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 18:04:58,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:04:58,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:04:58,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:04:58,502 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:04:58,502 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:04:58,502 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:04:58,503 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:04:58,503 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:04:58,503 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 18:04:58,503 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:04:58,503 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 18:04:58,504 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:04:58,504 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:04:58,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:04:58,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:04:58,505 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:04:58,505 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 18:04:58,506 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 18:04:58,506 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 18:04:58,506 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:04:58,507 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:04:58,508 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:04:58,510 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:04:58,510 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:04:58,510 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:04:58,510 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:04:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 18:04:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:04:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:04:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:04:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:04:58,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:04:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:04:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:04:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:04:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:04:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:04:58,512 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:04:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:04:58,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:04:58,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:04:58,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:04:58,513 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:04:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:04:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:04:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:04:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:04:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:04:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:04:58,514 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:04:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 18:04:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:04:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:04:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:04:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:04:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:04:58,515 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 18:04:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 18:04:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:04:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:04:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 18:04:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 18:04:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-08-22 18:04:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:04:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:04:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:04:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:04:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:04:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:04:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:04:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:04:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:04:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:04:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:04:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:04:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:04:58,518 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:04:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:04:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:04:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:04:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:04:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:04:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:04:58,519 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:04:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:04:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:04:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:04:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:04:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:04:58,520 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:04:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:04:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:04:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:04:58,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:04:59,598 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:04:59,598 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:04:59,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:04:59 BoogieIcfgContainer [2020-08-22 18:04:59,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:04:59,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:04:59,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:04:59,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:04:59,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:04:57" (1/3) ... [2020-08-22 18:04:59,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762a789c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:04:59, skipping insertion in model container [2020-08-22 18:04:59,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:04:58" (2/3) ... [2020-08-22 18:04:59,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@762a789c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:04:59, skipping insertion in model container [2020-08-22 18:04:59,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:04:59" (3/3) ... [2020-08-22 18:04:59,613 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2020-08-22 18:04:59,624 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:04:59,633 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:04:59,648 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:04:59,673 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:04:59,673 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:04:59,673 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:04:59,673 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:04:59,674 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:04:59,674 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:04:59,674 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:04:59,674 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:04:59,696 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2020-08-22 18:04:59,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 18:04:59,718 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:04:59,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:04:59,720 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:04:59,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:04:59,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1905765184, now seen corresponding path program 1 times [2020-08-22 18:04:59,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:04:59,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [19818240] [2020-08-22 18:04:59,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:04:59,819 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:00,497 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:00,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:00,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:00,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:00,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:00,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:00,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:05:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:00,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:05:00,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:00,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:05:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:00,642 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 18:05:00,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [19818240] [2020-08-22 18:05:00,647 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:00,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:05:00,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722384146] [2020-08-22 18:05:00,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:05:00,664 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:00,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:05:00,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:05:00,679 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2020-08-22 18:05:01,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:01,995 INFO L93 Difference]: Finished difference Result 458 states and 546 transitions. [2020-08-22 18:05:01,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:05:01,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 18:05:01,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:02,015 INFO L225 Difference]: With dead ends: 458 [2020-08-22 18:05:02,015 INFO L226 Difference]: Without dead ends: 287 [2020-08-22 18:05:02,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:05:02,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-08-22 18:05:02,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-08-22 18:05:02,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-08-22 18:05:02,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-08-22 18:05:02,151 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 153 [2020-08-22 18:05:02,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:02,152 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-08-22 18:05:02,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:05:02,152 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-08-22 18:05:02,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 18:05:02,157 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:02,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:02,157 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:05:02,158 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:02,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:02,158 INFO L82 PathProgramCache]: Analyzing trace with hash 319840535, now seen corresponding path program 1 times [2020-08-22 18:05:02,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:02,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [732933000] [2020-08-22 18:05:02,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:02,162 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:02,548 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:02,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:02,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:02,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:02,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:02,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:02,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:02,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 18:05:02,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:02,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 18:05:02,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:02,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 18:05:02,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:02,664 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 18:05:02,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [732933000] [2020-08-22 18:05:02,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:02,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:05:02,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352656052] [2020-08-22 18:05:02,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:05:02,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:02,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:05:02,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:05:02,669 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-08-22 18:05:03,347 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:05:04,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:04,200 INFO L93 Difference]: Finished difference Result 365 states and 409 transitions. [2020-08-22 18:05:04,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:05:04,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 18:05:04,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:04,206 INFO L225 Difference]: With dead ends: 365 [2020-08-22 18:05:04,206 INFO L226 Difference]: Without dead ends: 270 [2020-08-22 18:05:04,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:05:04,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-08-22 18:05:04,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 235. [2020-08-22 18:05:04,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-08-22 18:05:04,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-08-22 18:05:04,286 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-08-22 18:05:04,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:04,287 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-08-22 18:05:04,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:05:04,287 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-08-22 18:05:04,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-08-22 18:05:04,289 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:04,290 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 18:05:04,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:05:04,290 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:04,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:04,290 INFO L82 PathProgramCache]: Analyzing trace with hash 2018801783, now seen corresponding path program 1 times [2020-08-22 18:05:04,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:04,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1616134871] [2020-08-22 18:05:04,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:04,294 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:04,603 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:04,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:04,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:04,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:04,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:04,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:04,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:04,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:04,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:04,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 18:05:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:04,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-08-22 18:05:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:04,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 18:05:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:04,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-08-22 18:05:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:04,844 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 18:05:04,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1616134871] [2020-08-22 18:05:04,845 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:04,845 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 18:05:04,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993749605] [2020-08-22 18:05:04,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 18:05:04,848 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:04,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 18:05:04,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:05:04,849 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 10 states. [2020-08-22 18:05:05,611 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:06,088 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:05:06,414 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 18:05:06,699 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:06,926 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:07,147 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:08,163 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:05:10,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:10,423 INFO L93 Difference]: Finished difference Result 647 states and 752 transitions. [2020-08-22 18:05:10,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 18:05:10,424 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 167 [2020-08-22 18:05:10,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:10,430 INFO L225 Difference]: With dead ends: 647 [2020-08-22 18:05:10,430 INFO L226 Difference]: Without dead ends: 522 [2020-08-22 18:05:10,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:05:10,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2020-08-22 18:05:10,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 431. [2020-08-22 18:05:10,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 431 states. [2020-08-22 18:05:10,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 480 transitions. [2020-08-22 18:05:10,624 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 480 transitions. Word has length 167 [2020-08-22 18:05:10,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:10,626 INFO L479 AbstractCegarLoop]: Abstraction has 431 states and 480 transitions. [2020-08-22 18:05:10,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 18:05:10,627 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 480 transitions. [2020-08-22 18:05:10,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 18:05:10,631 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:10,631 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 18:05:10,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:05:10,632 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:10,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:10,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1851726168, now seen corresponding path program 1 times [2020-08-22 18:05:10,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:10,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [119669810] [2020-08-22 18:05:10,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:10,638 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:11,052 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:05:11,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:05:11,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:11,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:05:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:11,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:05:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:11,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:05:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:11,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:05:11,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:11,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 18:05:11,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:11,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 18:05:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:11,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 18:05:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:11,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-22 18:05:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:05:11,187 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 18:05:11,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [119669810] [2020-08-22 18:05:11,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:05:11,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:05:11,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574850868] [2020-08-22 18:05:11,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:05:11,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:05:11,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:05:11,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:05:11,190 INFO L87 Difference]: Start difference. First operand 431 states and 480 transitions. Second operand 9 states. [2020-08-22 18:05:11,657 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:13,341 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:13,600 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:13,928 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:14,226 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:05:14,479 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:05:14,719 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:14,938 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:05:15,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:05:15,662 INFO L93 Difference]: Finished difference Result 1151 states and 1381 transitions. [2020-08-22 18:05:15,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 18:05:15,663 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-08-22 18:05:15,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:05:15,671 INFO L225 Difference]: With dead ends: 1151 [2020-08-22 18:05:15,671 INFO L226 Difference]: Without dead ends: 830 [2020-08-22 18:05:15,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:05:15,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2020-08-22 18:05:15,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 731. [2020-08-22 18:05:15,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2020-08-22 18:05:15,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 837 transitions. [2020-08-22 18:05:15,948 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 837 transitions. Word has length 172 [2020-08-22 18:05:15,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:05:15,949 INFO L479 AbstractCegarLoop]: Abstraction has 731 states and 837 transitions. [2020-08-22 18:05:15,949 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:05:15,949 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 837 transitions. [2020-08-22 18:05:15,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 18:05:15,953 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:05:15,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:05:15,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:05:15,954 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:05:15,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:05:15,954 INFO L82 PathProgramCache]: Analyzing trace with hash 525017164, now seen corresponding path program 1 times [2020-08-22 18:05:15,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:05:15,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605894678] [2020-08-22 18:05:15,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:05:15,957 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:05:16,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:05:16,010 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:05:16,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:05:16,059 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:05:16,216 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:05:16,216 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:05:16,217 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:05:16,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:05:16 BoogieIcfgContainer [2020-08-22 18:05:16,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:05:16,242 INFO L168 Benchmark]: Toolchain (without parser) took 18597.02 ms. Allocated memory was 146.8 MB in the beginning and 558.4 MB in the end (delta: 411.6 MB). Free memory was 102.9 MB in the beginning and 183.8 MB in the end (delta: -80.9 MB). Peak memory consumption was 330.6 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:16,243 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 18:05:16,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.22 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 170.2 MB in the end (delta: -67.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:16,244 INFO L168 Benchmark]: Boogie Preprocessor took 107.29 ms. Allocated memory is still 203.9 MB. Free memory was 170.2 MB in the beginning and 165.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:16,245 INFO L168 Benchmark]: RCFGBuilder took 1193.06 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 165.6 MB in the beginning and 169.3 MB in the end (delta: -3.7 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:16,246 INFO L168 Benchmark]: TraceAbstraction took 16633.34 ms. Allocated memory was 234.4 MB in the beginning and 558.4 MB in the end (delta: 324.0 MB). Free memory was 169.3 MB in the beginning and 183.8 MB in the end (delta: -14.5 MB). Peak memory consumption was 309.6 MB. Max. memory is 7.1 GB. [2020-08-22 18:05:16,250 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.8 MB. Free memory was 122.5 MB in the beginning and 122.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 658.22 ms. Allocated memory was 146.8 MB in the beginning and 203.9 MB in the end (delta: 57.1 MB). Free memory was 102.6 MB in the beginning and 170.2 MB in the end (delta: -67.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.29 ms. Allocated memory is still 203.9 MB. Free memory was 170.2 MB in the beginning and 165.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1193.06 ms. Allocated memory was 203.9 MB in the beginning and 234.4 MB in the end (delta: 30.4 MB). Free memory was 165.6 MB in the beginning and 169.3 MB in the end (delta: -3.7 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16633.34 ms. Allocated memory was 234.4 MB in the beginning and 558.4 MB in the end (delta: 324.0 MB). Free memory was 169.3 MB in the beginning and 183.8 MB in the end (delta: -14.5 MB). Peak memory consumption was 309.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 545]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L89] int pumpRunning = 0; [L90] int systemActive = 1; [L356] int waterLevel = 1; [L357] int methaneLevelCritical = 0; [L445] int cleanupTimeShifts = 4; [L753] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L518] int retValue_acc ; [L519] int tmp ; [L523] FCALL select_helpers() [L524] FCALL select_features() [L525] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L525] RET, EXPR valid_product() [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L529] FCALL setup() [L530] CALL runTest() [L512] CALL test() [L287] int splverifierCounter ; [L288] int tmp ; [L289] int tmp___0 ; [L290] int tmp___1 ; [L291] int tmp___2 ; [L294] splverifierCounter = 0 [L296] COND TRUE 1 [L298] COND TRUE splverifierCounter < 4 [L304] tmp = __VERIFIER_nondet_int() [L306] COND TRUE \read(tmp) [L308] CALL waterRise() [L374] COND TRUE waterLevel < 2 [L375] waterLevel = waterLevel + 1 [L308] RET waterRise() [L314] tmp___0 = __VERIFIER_nondet_int() [L316] COND FALSE !(\read(tmp___0)) [L324] tmp___2 = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp___2)) [L332] tmp___1 = __VERIFIER_nondet_int() [L334] COND TRUE \read(tmp___1) [L336] CALL stopSystem() [L263] COND FALSE !(\read(pumpRunning)) [L270] systemActive = 0 [L336] RET stopSystem() [L343] CALL timeShift() [L97] COND FALSE !(\read(pumpRunning)) [L104] COND FALSE !(\read(systemActive)) [L112] CALL __utac_acc__Specification3_spec__1() [L551] int tmp ; [L552] int tmp___0 ; [L553] int tmp___1 ; [L557] CALL, EXPR isMethaneLevelCritical() [L395] int retValue_acc ; [L398] retValue_acc = methaneLevelCritical [L399] return (retValue_acc); [L557] RET, EXPR isMethaneLevelCritical() [L557] tmp = isMethaneLevelCritical() [L559] COND FALSE !(\read(tmp)) [L563] CALL, EXPR getWaterLevel() [L427] int retValue_acc ; [L430] retValue_acc = waterLevel [L431] return (retValue_acc); [L563] RET, EXPR getWaterLevel() [L563] tmp___0 = getWaterLevel() [L565] COND TRUE tmp___0 == 2 [L567] CALL, EXPR isPumpRunning() [L196] int retValue_acc ; [L199] retValue_acc = pumpRunning [L200] return (retValue_acc); [L567] RET, EXPR isPumpRunning() [L567] tmp___1 = isPumpRunning() [L569] COND FALSE !(\read(tmp___1)) [L573] CALL __automaton_fail() [L545] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 628 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 12.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 952 SDtfs, 1387 SDslu, 1400 SDs, 0 SdLazy, 2905 SolverSat, 480 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=731occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 4 MinimizatonAttempts, 267 StatesRemovedByMinimization, 4 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...