/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_spec1_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 17:54:50,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 17:54:50,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 17:54:50,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 17:54:50,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 17:54:50,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 17:54:50,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 17:54:50,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 17:54:50,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 17:54:50,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 17:54:50,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 17:54:50,189 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 17:54:50,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 17:54:50,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 17:54:50,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 17:54:50,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 17:54:50,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 17:54:50,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 17:54:50,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 17:54:50,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 17:54:50,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 17:54:50,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 17:54:50,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 17:54:50,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 17:54:50,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 17:54:50,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 17:54:50,217 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 17:54:50,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 17:54:50,220 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 17:54:50,221 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 17:54:50,221 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 17:54:50,222 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 17:54:50,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 17:54:50,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 17:54:50,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 17:54:50,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 17:54:50,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 17:54:50,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 17:54:50,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 17:54:50,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 17:54:50,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 17:54:50,228 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 17:54:50,245 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 17:54:50,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 17:54:50,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 17:54:50,248 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 17:54:50,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 17:54:50,248 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 17:54:50,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 17:54:50,249 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 17:54:50,249 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 17:54:50,249 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 17:54:50,250 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 17:54:50,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 17:54:50,251 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 17:54:50,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 17:54:50,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 17:54:50,252 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 17:54:50,252 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 17:54:50,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 17:54:50,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 17:54:50,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 17:54:50,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 17:54:50,253 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 17:54:50,253 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 17:54:50,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 17:54:50,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 17:54:50,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 17:54:50,543 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 17:54:50,543 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 17:54:50,544 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-08-22 17:54:50,619 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d59ad3896/28691fe8651f4cddbba07947b9ea35c9/FLAG621158701 [2020-08-22 17:54:51,205 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 17:54:51,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-08-22 17:54:51,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d59ad3896/28691fe8651f4cddbba07947b9ea35c9/FLAG621158701 [2020-08-22 17:54:51,460 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d59ad3896/28691fe8651f4cddbba07947b9ea35c9 [2020-08-22 17:54:51,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 17:54:51,471 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 17:54:51,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 17:54:51,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 17:54:51,475 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 17:54:51,476 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 05:54:51" (1/1) ... [2020-08-22 17:54:51,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217e3fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:54:51, skipping insertion in model container [2020-08-22 17:54:51,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 05:54:51" (1/1) ... [2020-08-22 17:54:51,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 17:54:51,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 17:54:52,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 17:54:52,032 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 17:54:52,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 17:54:52,181 INFO L208 MainTranslator]: Completed translation [2020-08-22 17:54:52,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:54:52 WrapperNode [2020-08-22 17:54:52,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 17:54:52,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 17:54:52,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 17:54:52,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 17:54:52,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:54:52" (1/1) ... [2020-08-22 17:54:52,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:54:52" (1/1) ... [2020-08-22 17:54:52,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:54:52" (1/1) ... [2020-08-22 17:54:52,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:54:52" (1/1) ... [2020-08-22 17:54:52,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:54:52" (1/1) ... [2020-08-22 17:54:52,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:54:52" (1/1) ... [2020-08-22 17:54:52,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:54:52" (1/1) ... [2020-08-22 17:54:52,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 17:54:52,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 17:54:52,270 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 17:54:52,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 17:54:52,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:54:52" (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 17:54:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 17:54:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 17:54:52,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 17:54:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 17:54:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 17:54:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 17:54:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 17:54:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 17:54:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 17:54:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 17:54:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 17:54:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 17:54:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 17:54:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 17:54:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 17:54:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 17:54:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 17:54:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 17:54:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 17:54:52,342 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 17:54:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 17:54:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 17:54:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 17:54:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-08-22 17:54:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 17:54:52,343 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 17:54:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 17:54:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 17:54:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 17:54:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 17:54:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 17:54:52,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-08-22 17:54:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 17:54:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 17:54:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 17:54:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 17:54:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 17:54:52,345 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 17:54:52,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 17:54:52,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 17:54:52,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 17:54:52,346 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 17:54:52,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 17:54:52,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 17:54:52,346 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 17:54:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 17:54:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 17:54:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 17:54:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 17:54:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 17:54:52,347 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 17:54:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 17:54:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 17:54:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 17:54:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 17:54:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 17:54:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 17:54:52,348 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 17:54:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 17:54:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 17:54:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-08-22 17:54:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-08-22 17:54:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 17:54:52,349 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 17:54:52,350 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 17:54:52,350 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 17:54:52,350 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 17:54:52,350 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 17:54:52,350 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 17:54:52,350 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 17:54:52,350 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 17:54:52,351 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 17:54:52,351 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 17:54:52,351 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 17:54:52,351 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 17:54:52,351 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 17:54:52,351 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 17:54:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 17:54:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 17:54:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 17:54:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 17:54:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 17:54:52,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 17:54:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 17:54:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 17:54:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 17:54:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 17:54:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 17:54:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 17:54:52,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 17:54:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 17:54:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 17:54:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 17:54:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 17:54:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 17:54:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 17:54:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 17:54:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 17:54:53,539 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 17:54:53,540 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 17:54:53,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 05:54:53 BoogieIcfgContainer [2020-08-22 17:54:53,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 17:54:53,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 17:54:53,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 17:54:53,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 17:54:53,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 05:54:51" (1/3) ... [2020-08-22 17:54:53,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d69dd1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 05:54:53, skipping insertion in model container [2020-08-22 17:54:53,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 05:54:52" (2/3) ... [2020-08-22 17:54:53,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d69dd1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 05:54:53, skipping insertion in model container [2020-08-22 17:54:53,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 05:54:53" (3/3) ... [2020-08-22 17:54:53,556 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2020-08-22 17:54:53,567 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 17:54:53,576 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 17:54:53,591 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 17:54:53,615 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 17:54:53,615 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 17:54:53,616 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 17:54:53,616 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 17:54:53,616 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 17:54:53,616 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 17:54:53,617 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 17:54:53,617 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 17:54:53,638 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states. [2020-08-22 17:54:53,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-08-22 17:54:53,659 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:54:53,660 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] [2020-08-22 17:54:53,661 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:54:53,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:54:53,667 INFO L82 PathProgramCache]: Analyzing trace with hash 254159831, now seen corresponding path program 1 times [2020-08-22 17:54:53,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:54:53,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [52422428] [2020-08-22 17:54:53,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:54:53,750 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:54:53,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:54,437 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 17:54:54,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:54:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:54,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 17:54:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:54,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 17:54:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:54,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 17:54:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:54,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 17:54:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:54,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 17:54:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:54,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-08-22 17:54:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:54,627 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 17:54:54,630 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [52422428] [2020-08-22 17:54:54,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:54:54,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 17:54:54,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816356405] [2020-08-22 17:54:54,639 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 17:54:54,640 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:54:54,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 17:54:54,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 17:54:54,659 INFO L87 Difference]: Start difference. First operand 328 states. Second operand 3 states. [2020-08-22 17:54:56,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:54:56,075 INFO L93 Difference]: Finished difference Result 512 states and 609 transitions. [2020-08-22 17:54:56,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 17:54:56,078 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-08-22 17:54:56,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:54:56,101 INFO L225 Difference]: With dead ends: 512 [2020-08-22 17:54:56,102 INFO L226 Difference]: Without dead ends: 315 [2020-08-22 17:54:56,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 17:54:56,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-08-22 17:54:56,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 271. [2020-08-22 17:54:56,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-08-22 17:54:56,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 295 transitions. [2020-08-22 17:54:56,286 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 295 transitions. Word has length 142 [2020-08-22 17:54:56,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:54:56,288 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 295 transitions. [2020-08-22 17:54:56,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 17:54:56,289 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 295 transitions. [2020-08-22 17:54:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-08-22 17:54:56,301 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:54:56,302 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] [2020-08-22 17:54:56,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 17:54:56,302 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:54:56,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:54:56,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1230709371, now seen corresponding path program 1 times [2020-08-22 17:54:56,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:54:56,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870269059] [2020-08-22 17:54:56,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:54:56,307 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:54:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:56,705 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 17:54:56,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:54:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:56,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 17:54:56,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:56,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 17:54:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:56,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 17:54:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:56,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 17:54:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:56,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 17:54:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:56,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 17:54:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:56,772 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 17:54:56,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870269059] [2020-08-22 17:54:56,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:54:56,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 17:54:56,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513773448] [2020-08-22 17:54:56,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 17:54:56,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:54:56,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 17:54:56,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 17:54:56,776 INFO L87 Difference]: Start difference. First operand 271 states and 295 transitions. Second operand 4 states. [2020-08-22 17:54:57,379 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:54:58,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:54:58,373 INFO L93 Difference]: Finished difference Result 419 states and 472 transitions. [2020-08-22 17:54:58,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 17:54:58,379 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-08-22 17:54:58,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:54:58,383 INFO L225 Difference]: With dead ends: 419 [2020-08-22 17:54:58,384 INFO L226 Difference]: Without dead ends: 298 [2020-08-22 17:54:58,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 17:54:58,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-08-22 17:54:58,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 261. [2020-08-22 17:54:58,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-08-22 17:54:58,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 282 transitions. [2020-08-22 17:54:58,470 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 282 transitions. Word has length 143 [2020-08-22 17:54:58,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:54:58,471 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 282 transitions. [2020-08-22 17:54:58,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 17:54:58,471 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 282 transitions. [2020-08-22 17:54:58,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-08-22 17:54:58,473 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:54:58,474 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] [2020-08-22 17:54:58,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 17:54:58,474 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:54:58,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:54:58,474 INFO L82 PathProgramCache]: Analyzing trace with hash -11881279, now seen corresponding path program 1 times [2020-08-22 17:54:58,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:54:58,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138943780] [2020-08-22 17:54:58,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:54:58,477 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:54:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:58,766 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 17:54:58,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:54:58,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:58,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 17:54:58,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:58,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 17:54:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:58,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 17:54:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:58,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 17:54:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:58,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-08-22 17:54:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:58,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 17:54:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:58,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 17:54:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:54:58,940 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 17:54:58,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138943780] [2020-08-22 17:54:58,941 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:54:58,941 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 17:54:58,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102660076] [2020-08-22 17:54:58,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 17:54:58,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:54:58,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 17:54:58,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 17:54:58,944 INFO L87 Difference]: Start difference. First operand 261 states and 282 transitions. Second operand 10 states. [2020-08-22 17:54:59,399 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 17:54:59,725 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:55:00,001 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-08-22 17:55:00,251 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 17:55:00,496 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:55:00,728 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 17:55:01,631 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:55:04,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:55:04,148 INFO L93 Difference]: Finished difference Result 718 states and 836 transitions. [2020-08-22 17:55:04,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 17:55:04,155 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-08-22 17:55:04,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:55:04,161 INFO L225 Difference]: With dead ends: 718 [2020-08-22 17:55:04,161 INFO L226 Difference]: Without dead ends: 567 [2020-08-22 17:55:04,163 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-08-22 17:55:04,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2020-08-22 17:55:04,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 472. [2020-08-22 17:55:04,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2020-08-22 17:55:04,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 528 transitions. [2020-08-22 17:55:04,327 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 528 transitions. Word has length 156 [2020-08-22 17:55:04,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:55:04,328 INFO L479 AbstractCegarLoop]: Abstraction has 472 states and 528 transitions. [2020-08-22 17:55:04,328 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 17:55:04,328 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 528 transitions. [2020-08-22 17:55:04,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-08-22 17:55:04,331 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:55:04,331 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] [2020-08-22 17:55:04,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 17:55:04,332 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:55:04,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:55:04,332 INFO L82 PathProgramCache]: Analyzing trace with hash -409466612, now seen corresponding path program 1 times [2020-08-22 17:55:04,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:55:04,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182341884] [2020-08-22 17:55:04,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:55:04,335 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:55:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:04,656 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 17:55:04,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:55:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:04,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 17:55:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:04,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 17:55:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:04,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 17:55:04,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:04,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 17:55:04,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:04,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 17:55:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:04,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 17:55:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:04,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-08-22 17:55:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:04,885 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 17:55:04,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182341884] [2020-08-22 17:55:04,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:55:04,887 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 17:55:04,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621124353] [2020-08-22 17:55:04,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 17:55:04,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:55:04,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 17:55:04,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 17:55:04,891 INFO L87 Difference]: Start difference. First operand 472 states and 528 transitions. Second operand 9 states. [2020-08-22 17:55:05,563 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 17:55:06,947 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 17:55:07,207 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:55:07,536 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 17:55:07,818 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 17:55:08,049 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:55:08,278 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 17:55:08,581 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 17:55:09,054 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:55:10,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:55:10,168 INFO L93 Difference]: Finished difference Result 1314 states and 1572 transitions. [2020-08-22 17:55:10,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 17:55:10,168 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-08-22 17:55:10,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:55:10,176 INFO L225 Difference]: With dead ends: 1314 [2020-08-22 17:55:10,176 INFO L226 Difference]: Without dead ends: 952 [2020-08-22 17:55:10,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-08-22 17:55:10,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2020-08-22 17:55:10,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 795. [2020-08-22 17:55:10,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 795 states. [2020-08-22 17:55:10,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 902 transitions. [2020-08-22 17:55:10,455 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 902 transitions. Word has length 161 [2020-08-22 17:55:10,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:55:10,456 INFO L479 AbstractCegarLoop]: Abstraction has 795 states and 902 transitions. [2020-08-22 17:55:10,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 17:55:10,456 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 902 transitions. [2020-08-22 17:55:10,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-08-22 17:55:10,460 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:55:10,460 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 17:55:10,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 17:55:10,461 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:55:10,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:55:10,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1234625458, now seen corresponding path program 1 times [2020-08-22 17:55:10,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:55:10,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1588583024] [2020-08-22 17:55:10,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:55:10,464 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:55:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:10,720 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 17:55:10,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:55:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:10,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 17:55:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:10,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 17:55:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:10,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 17:55:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:10,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 17:55:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:10,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 17:55:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:10,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-08-22 17:55:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:10,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-08-22 17:55:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:10,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-08-22 17:55:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:10,906 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 17:55:10,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1588583024] [2020-08-22 17:55:10,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:55:10,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 17:55:10,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53781117] [2020-08-22 17:55:10,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 17:55:10,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:55:10,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 17:55:10,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-08-22 17:55:10,908 INFO L87 Difference]: Start difference. First operand 795 states and 902 transitions. Second operand 10 states. [2020-08-22 17:55:11,401 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 17:55:12,626 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 17:55:12,878 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:55:13,135 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 17:55:13,396 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 17:55:13,676 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 17:55:14,423 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 17:55:14,652 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 17:55:15,009 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:55:16,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:55:16,003 INFO L93 Difference]: Finished difference Result 2058 states and 2533 transitions. [2020-08-22 17:55:16,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 17:55:16,004 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-08-22 17:55:16,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:55:16,015 INFO L225 Difference]: With dead ends: 2058 [2020-08-22 17:55:16,015 INFO L226 Difference]: Without dead ends: 1373 [2020-08-22 17:55:16,018 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-08-22 17:55:16,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1373 states. [2020-08-22 17:55:16,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1373 to 1105. [2020-08-22 17:55:16,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1105 states. [2020-08-22 17:55:16,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1273 transitions. [2020-08-22 17:55:16,508 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1273 transitions. Word has length 166 [2020-08-22 17:55:16,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:55:16,509 INFO L479 AbstractCegarLoop]: Abstraction has 1105 states and 1273 transitions. [2020-08-22 17:55:16,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 17:55:16,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1273 transitions. [2020-08-22 17:55:16,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-08-22 17:55:16,514 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:55:16,514 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] [2020-08-22 17:55:16,514 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 17:55:16,515 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:55:16,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:55:16,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1793051015, now seen corresponding path program 1 times [2020-08-22 17:55:16,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:55:16,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199016025] [2020-08-22 17:55:16,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:55:16,519 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:55:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,814 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 17:55:16,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:55:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 17:55:16,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 17:55:16,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 17:55:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 17:55:16,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 17:55:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 17:55:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 17:55:16,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 17:55:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 17:55:16,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 17:55:16,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 17:55:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-08-22 17:55:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-08-22 17:55:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:16,980 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 17:55:16,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199016025] [2020-08-22 17:55:16,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:55:16,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 17:55:16,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447503175] [2020-08-22 17:55:16,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 17:55:16,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:55:16,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 17:55:16,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-08-22 17:55:16,984 INFO L87 Difference]: Start difference. First operand 1105 states and 1273 transitions. Second operand 11 states. [2020-08-22 17:55:18,345 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 17:55:18,600 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:55:18,851 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-08-22 17:55:19,098 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:55:19,364 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:55:19,596 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:55:21,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:55:21,329 INFO L93 Difference]: Finished difference Result 2717 states and 3403 transitions. [2020-08-22 17:55:21,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 17:55:21,329 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 199 [2020-08-22 17:55:21,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:55:21,343 INFO L225 Difference]: With dead ends: 2717 [2020-08-22 17:55:21,344 INFO L226 Difference]: Without dead ends: 1722 [2020-08-22 17:55:21,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2020-08-22 17:55:21,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2020-08-22 17:55:21,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1143. [2020-08-22 17:55:21,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1143 states. [2020-08-22 17:55:21,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1313 transitions. [2020-08-22 17:55:21,723 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1313 transitions. Word has length 199 [2020-08-22 17:55:21,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:55:21,723 INFO L479 AbstractCegarLoop]: Abstraction has 1143 states and 1313 transitions. [2020-08-22 17:55:21,723 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 17:55:21,723 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1313 transitions. [2020-08-22 17:55:21,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-08-22 17:55:21,727 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:55:21,727 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] [2020-08-22 17:55:21,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 17:55:21,728 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:55:21,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:55:21,728 INFO L82 PathProgramCache]: Analyzing trace with hash 819180839, now seen corresponding path program 1 times [2020-08-22 17:55:21,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:55:21,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431518059] [2020-08-22 17:55:21,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:55:21,731 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:55:21,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:21,974 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 17:55:21,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:55:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:21,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 17:55:21,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:21,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 17:55:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:22,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 17:55:22,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:22,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 17:55:22,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:22,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 17:55:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:22,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 17:55:22,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:22,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 17:55:22,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:22,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 17:55:22,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:22,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 17:55:22,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:22,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 17:55:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:22,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 17:55:22,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:22,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-08-22 17:55:22,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:22,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-08-22 17:55:22,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:22,195 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 17:55:22,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431518059] [2020-08-22 17:55:22,196 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:55:22,196 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 17:55:22,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139172766] [2020-08-22 17:55:22,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 17:55:22,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:55:22,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 17:55:22,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-08-22 17:55:22,198 INFO L87 Difference]: Start difference. First operand 1143 states and 1313 transitions. Second operand 14 states. [2020-08-22 17:55:22,718 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 17:55:22,947 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 17:55:23,172 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:55:23,442 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:55:23,654 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:55:24,572 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:55:24,817 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:55:25,070 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:55:25,353 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 17:55:25,585 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 17:55:27,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:55:27,871 INFO L93 Difference]: Finished difference Result 2799 states and 3554 transitions. [2020-08-22 17:55:27,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-22 17:55:27,872 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 199 [2020-08-22 17:55:27,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:55:27,884 INFO L225 Difference]: With dead ends: 2799 [2020-08-22 17:55:27,884 INFO L226 Difference]: Without dead ends: 1766 [2020-08-22 17:55:27,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-08-22 17:55:27,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1766 states. [2020-08-22 17:55:28,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1766 to 1167. [2020-08-22 17:55:28,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2020-08-22 17:55:28,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1337 transitions. [2020-08-22 17:55:28,476 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1337 transitions. Word has length 199 [2020-08-22 17:55:28,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:55:28,476 INFO L479 AbstractCegarLoop]: Abstraction has 1167 states and 1337 transitions. [2020-08-22 17:55:28,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 17:55:28,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1337 transitions. [2020-08-22 17:55:28,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-08-22 17:55:28,482 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:55:28,482 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] [2020-08-22 17:55:28,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 17:55:28,483 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:55:28,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:55:28,483 INFO L82 PathProgramCache]: Analyzing trace with hash -821113142, now seen corresponding path program 1 times [2020-08-22 17:55:28,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:55:28,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801409510] [2020-08-22 17:55:28,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:55:28,487 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:55:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,744 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 17:55:28,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 17:55:28,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 17:55:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 17:55:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 17:55:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 17:55:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-08-22 17:55:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-08-22 17:55:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-08-22 17:55:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 17:55:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-22 17:55:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 17:55:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-08-22 17:55:28,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-08-22 17:55:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-08-22 17:55:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 17:55:28,939 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 17:55:28,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801409510] [2020-08-22 17:55:28,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 17:55:28,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 17:55:28,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774360809] [2020-08-22 17:55:28,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 17:55:28,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 17:55:28,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 17:55:28,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 17:55:28,942 INFO L87 Difference]: Start difference. First operand 1167 states and 1337 transitions. Second operand 8 states. [2020-08-22 17:55:29,422 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 17:55:29,944 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 17:55:34,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 17:55:34,400 INFO L93 Difference]: Finished difference Result 4329 states and 5547 transitions. [2020-08-22 17:55:34,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 17:55:34,401 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2020-08-22 17:55:34,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 17:55:34,418 INFO L225 Difference]: With dead ends: 4329 [2020-08-22 17:55:34,418 INFO L226 Difference]: Without dead ends: 3272 [2020-08-22 17:55:34,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=163, Invalid=487, Unknown=0, NotChecked=0, Total=650 [2020-08-22 17:55:34,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3272 states. [2020-08-22 17:55:35,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3272 to 2347. [2020-08-22 17:55:35,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2347 states. [2020-08-22 17:55:35,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 2717 transitions. [2020-08-22 17:55:35,195 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 2717 transitions. Word has length 199 [2020-08-22 17:55:35,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 17:55:35,195 INFO L479 AbstractCegarLoop]: Abstraction has 2347 states and 2717 transitions. [2020-08-22 17:55:35,195 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 17:55:35,195 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 2717 transitions. [2020-08-22 17:55:35,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-08-22 17:55:35,201 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 17:55:35,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:55:35,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 17:55:35,201 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 17:55:35,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 17:55:35,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1861424498, now seen corresponding path program 1 times [2020-08-22 17:55:35,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 17:55:35,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301260087] [2020-08-22 17:55:35,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 17:55:35,205 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 17:55:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 17:55:35,255 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 17:55:35,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 17:55:35,307 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 17:55:35,510 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 17:55:35,510 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 17:55:35,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 17:55:35,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 05:55:35 BoogieIcfgContainer [2020-08-22 17:55:35,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 17:55:35,543 INFO L168 Benchmark]: Toolchain (without parser) took 44073.09 ms. Allocated memory was 146.8 MB in the beginning and 987.2 MB in the end (delta: 840.4 MB). Free memory was 101.6 MB in the beginning and 136.7 MB in the end (delta: -35.1 MB). Peak memory consumption was 805.3 MB. Max. memory is 7.1 GB. [2020-08-22 17:55:35,544 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 17:55:35,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.67 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 101.4 MB in the beginning and 172.7 MB in the end (delta: -71.3 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-08-22 17:55:35,545 INFO L168 Benchmark]: Boogie Preprocessor took 87.06 ms. Allocated memory is still 205.0 MB. Free memory was 172.7 MB in the beginning and 168.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-08-22 17:55:35,546 INFO L168 Benchmark]: RCFGBuilder took 1277.02 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 168.1 MB in the beginning and 172.2 MB in the end (delta: -4.1 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-08-22 17:55:35,547 INFO L168 Benchmark]: TraceAbstraction took 41993.54 ms. Allocated memory was 236.5 MB in the beginning and 987.2 MB in the end (delta: 750.8 MB). Free memory was 172.2 MB in the beginning and 136.7 MB in the end (delta: 35.5 MB). Peak memory consumption was 786.3 MB. Max. memory is 7.1 GB. [2020-08-22 17:55:35,551 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.2 MB in the beginning and 121.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.67 ms. Allocated memory was 146.8 MB in the beginning and 205.0 MB in the end (delta: 58.2 MB). Free memory was 101.4 MB in the beginning and 172.7 MB in the end (delta: -71.3 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.06 ms. Allocated memory is still 205.0 MB. Free memory was 172.7 MB in the beginning and 168.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1277.02 ms. Allocated memory was 205.0 MB in the beginning and 236.5 MB in the end (delta: 31.5 MB). Free memory was 168.1 MB in the beginning and 172.2 MB in the end (delta: -4.1 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41993.54 ms. Allocated memory was 236.5 MB in the beginning and 987.2 MB in the end (delta: 750.8 MB). Free memory was 172.2 MB in the beginning and 136.7 MB in the end (delta: 35.5 MB). Peak memory consumption was 786.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 383]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L458] int cleanupTimeShifts = 4; [L752] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int retValue_acc ; [L535] int tmp ; [L539] FCALL select_helpers() [L540] FCALL select_features() [L541] CALL, EXPR valid_product() [L975] int retValue_acc ; [L978] retValue_acc = 1 [L979] return (retValue_acc); [L541] RET, EXPR valid_product() [L541] tmp = valid_product() [L543] COND TRUE \read(tmp) [L545] FCALL setup() [L546] CALL runTest() [L525] CALL test() [L390] int splverifierCounter ; [L391] int tmp ; [L392] int tmp___0 ; [L393] int tmp___1 ; [L394] int tmp___2 ; [L397] splverifierCounter = 0 [L399] COND TRUE 1 [L401] COND TRUE splverifierCounter < 4 [L407] tmp = __VERIFIER_nondet_int() [L409] COND TRUE \read(tmp) [L411] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L411] RET waterRise() [L417] tmp___0 = __VERIFIER_nondet_int() [L419] COND TRUE \read(tmp___0) [L421] CALL changeMethaneLevel() [L78] COND FALSE !(\read(methaneLevelCritical)) [L81] methaneLevelCritical = 1 [L421] RET changeMethaneLevel() [L427] tmp___2 = __VERIFIER_nondet_int() [L429] COND TRUE \read(tmp___2) [L431] CALL startSystem() [L374] systemActive = 1 [L431] RET startSystem() [L446] CALL timeShift() [L166] COND FALSE !(\read(pumpRunning)) [L173] COND TRUE \read(systemActive) [L175] CALL processEnvironment() [L221] int tmp ; [L224] COND FALSE !(\read(pumpRunning)) [L239] CALL processEnvironment__wrappee__highWaterSensor() [L195] int tmp ; [L198] COND TRUE ! pumpRunning [L200] CALL, EXPR isHighWaterLevel() [L318] int retValue_acc ; [L319] int tmp ; [L320] int tmp___0 ; [L324] CALL, EXPR isHighWaterSensorDry() [L128] int retValue_acc ; [L131] COND FALSE !(waterLevel < 2) [L135] retValue_acc = 0 [L136] return (retValue_acc); [L324] RET, EXPR isHighWaterSensorDry() [L324] tmp = isHighWaterSensorDry() [L326] COND FALSE !(\read(tmp)) [L329] tmp___0 = 1 [L331] retValue_acc = tmp___0 [L332] return (retValue_acc); [L200] RET, EXPR isHighWaterLevel() [L200] tmp = isHighWaterLevel() [L202] COND TRUE \read(tmp) [L204] CALL activatePump() [L249] pumpRunning = 1 [L204] RET activatePump() [L239] RET processEnvironment__wrappee__highWaterSensor() [L175] RET processEnvironment() [L181] CALL __utac_acc__Specification1_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L563] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L563] RET, EXPR isMethaneLevelCritical() [L563] tmp = isMethaneLevelCritical() [L565] COND TRUE \read(tmp) [L567] CALL, EXPR isPumpRunning() [L273] int retValue_acc ; [L276] retValue_acc = pumpRunning [L277] return (retValue_acc); [L567] RET, EXPR isPumpRunning() [L567] tmp___0 = isPumpRunning() [L569] COND TRUE \read(tmp___0) [L571] CALL __automaton_fail() [L383] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 647 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 41.9s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 34.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2101 SDtfs, 4648 SDslu, 4291 SDs, 0 SdLazy, 9384 SolverSat, 1522 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 333 GetRequests, 202 SyntacticMatches, 3 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 12.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2347occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.9s AutomataMinimizationTime, 8 MinimizatonAttempts, 2704 StatesRemovedByMinimization, 8 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...